Lawyer Hatch Lawyer Hatch
📚 Part of: Inference & Conclusion guide

Complete the Argument: Fill-in-the-Blank Conclusions

The ending is already written in the premises. Read the word before the blank, predict where the argument is heading, and take the option that gets there without overshooting.

RS ✍ Written by Rohit Singh · IIT Roorkee
AU ✔ Reviewed by Aswani Upadhyay · MA (Computer Science & English), Delhi University
3
CLAT-style Qs solved
11 min
read
3
worked examples
Practise Inference & Conclusion drills →
📑 On this page
⚡ The short answer
A complete-the-argument question stops mid-thought and asks which option most logically completes it. The word before the blank sets the job: therefore wants a conclusion, because a missing reason, but a turn. Predict the ending, then pick the option the premises support without saying more. The #1 trap: an on-topic option that doesn't follow.
🎬 The 30-second story
The voice note that cut off
1
“Flights are ₹14,000, CLAT is five weeks away, and last year's trip ate two mock weekends. So—”
🎙️
Aarav
Aarav's voice note about the Goa trip. The network dies.
2
“So Goa is overrated. Knew it.”
🏖️
Rohan
Rohan finishes it with a claim nobody made.
3
“So you'll all spend the weekend at my café!”
☕
Kabir
Kabir finishes it with his own plan.
4
“So we go after CLAT. Every reason he gave is about now.”
🗓️
Zoya
Zoya finishes it with what the reasons point to.
Tara's verdict: Every reason in the note says ‘not now’; none says ‘never’ or ‘café instead’. The right completion goes where the premises push, and no further.

How is ‘complete the argument’ worded, and has CLAT asked it?

ℹ️ An honest label
In our map of every CLAT UG Logical Reasoning question from 2018 to 2025, none uses this stem, so the questions here are labelled CLAT-style. The skill still pays: predicting where premises point drives main-point, inference and must-be-true questions, which CLAT asks in every paper.
You may seeWhat the blank needs
“Which most logically completes the argument?”Usually the conclusion the premises build to.
“…Therefore, ____” / “So, ____”A conclusion: forced, and no bigger than the premises.
“…because ____” / “since ____”A missing reason that makes the stated conclusion follow.
“…But ____” / “Yet ____”A turn: something that pushes against the sentence before.
“…unless ____” / “only if ____”A condition: the one thing that changes the outcome.
→ scroll to see more

What does the blank really want?

🗺️ Argument map
Aarav's voice note, mapped
Premise 1
Return flights cost ₹14,000.
Premise 2
CLAT is five weeks away.
Premise 3
Last year's trip ate two mock weekends.
therefore↓
🎯 The blank
So… ________
What each new fact does
  • +
    So we go to Goa after CLAT
    Completes it — every premise is about cost and timing now
  • −
    So Goa is overrated
    Overshoots — nothing says Goa itself is bad
  • ∅
    So let's spend the weekend at Kabir's café
    Changes the subject — same weekend, zero support

The premises decide the ending.

📌 Two tests, every option
Does it follow? The premises must push towards it. Does it stop in time? It must claim no more than they support.

How do you complete an argument in 50 seconds?

  1. 1
    Signal: read the word before the blank
    Therefore, because, but, unless: it tells you whether the blank is a conclusion, a reason or a turn.
  2. 2
    Map: strip the premises to one line each
    Note which way each pushes, and any if or only.
  3. 3
    Predict: say the ending in your own words
    Before the options. A rough guess beats a perfect reread.
  4. 4
    Test: follows, and stops in time
    Plug each option in. Cut decoys, repeats, wrong turns and overshoots.

What are the four kinds of blank?

1. The conclusion blank (therefore…)

The commonest kind: premises given, ending missing. It must be forced, so prefer may, some, in this case over always, all.

🎚️ The scale
How far can the ending go?
← Says nothing newSays too much →
Repeat
restates a premise
e.g. ‘Flights are expensive’
Follows
what the premises force
e.g. ‘Go after CLAT’
Stretch
plausible, not forced
e.g. ‘No trips this year’
Overshoot
a new, bigger claim
e.g. ‘Trips are a waste’

2. The reason blank (because…)

Now the conclusion is stated and the blank must support it: a bridge that makes it follow. Unlike a conclusion blank, it may add a new fact.

⚔️ Side by side
Conclusion blank vs reason blank
🎯Therefore ____
supply the claim
  • •Premises given, ending missing
🌉Because ____
supply the support
  • •Ending given, a reason missing
TestTherefore ____Because ____
Support flowspassage → optionoption → conclusion
New facts allowed?NoYes, if they bridge the gap

Same blank, opposite direction of support.

3. The turn blank (but, yet…) and 4. the condition blank (unless…)

A but promises a change of direction, so the blank must push against the sentence before; an option that keeps going is the usual trap. ‘The plan will fail unless ____’ wants the one thing whose absence sinks the plan.

🧩 At a glance
Five ways a completion goes wrong
🧲Topical decoy
Same subject, no support from the premises.
🔁Repeat
Restates a premise and completes nothing.
📢Overshoot
Goes past the premises: ‘all’, ‘always’, ‘ban’.
🔄Wrong direction
After ‘but’, keeps going; after ‘therefore’, argues back.
🛸New idea
A topic the passage never touched.
⚠️ The ‘sounds like an ending’ trap
Options with ‘clearly’ or a neat moral sound conclusive. Ignore the tone. A plain option the premises force beats a quotable one they don't.

Complete-the-argument questions, worked step by step

✍️ Worked example Warm-up ⏱ 25 sec
The samosa rule
“If the canteen runs out of samosas, it puts out bread pakoras. Today there were no bread pakoras on the counter. So ____.”
(A) the canteen did not run out of samosas (B) the canteen sold samosas all day (C) the canteen ran out of samosas (D) students prefer samosas
  1. 1
    Signal: ‘So’: a conclusion blank.
  2. 2
    Map: ran out → pakoras. No pakoras today.
  3. 3
    Predict: had it run out, pakoras would be out. So it didn't run out.
  4. 4
    Test: A. B overshoots: ‘didn't run out’ isn't ‘sold them all day’. C is the opposite. D is a new idea.
Answer: (A)
⚡ The exam-hall shortcut
‘If P then Q’ plus ‘not Q’ completes as ‘not P’.
✍️ Worked example CLAT level ⏱ 75 sec
The unpaid internship
“Many law firms still offer unpaid internships, and students accept them because an internship is the surest route to a job offer. Firms say interns gain more in training than they give, so payment would be charity. But consider who can say yes. An unpaid month in Mumbai can cost tens of thousands of rupees in rent and food. Students whose families can absorb that apply widely; the rest apply only where a relative can house them, or not at all. Firms then hire from their interns. So a firm ends up selecting the best young lawyers whose families could afford a free month. A firm that wants interns chosen for ability rather than their parents' bank balance, therefore, ____”
(A) should stop offering internships, since they only help the rich (B) should pay interns enough to cover the month (C) should recognise that interns gain more than they give (D) should recruit only students who never interned
  1. 1
    Signal: ‘therefore’ after ‘a firm that wants X’: the fix that delivers X.
  2. 2
    Map: unpaid → only the well-off apply → firms hire from them → selection by wealth.
  3. 3
    Predict: remove the cost barrier: pay the interns.
  4. 4
    Test: B. A overshoots: internships are unfair, not useless. C is the firms' view the ‘But’ answered. D is never discussed.
Answer: (B)
⚡ The exam-hall shortcut
When the middle of a passage is about a cause, the completion is the fix for that cause.
✍️ Worked example Tricky ⏱ 40 sec
The moot court puzzle
“Every member of the college moot court society has argued at least one national moot. Some members of the debating club are also in the moot court society. It follows that ____.”
(A) some debaters have argued a national moot (B) every debater has argued a national moot (C) everyone who has argued a national moot is in the moot society (D) some moot members are not debaters
  1. 1
    Signal: ‘It follows that’: a strict conclusion.
  2. 2
    Map: All moot members → national mooters. Some debaters → moot members.
  3. 3
    Predict: the debaters in the moot society have argued a national moot.
  4. 4
    Test: A. B turns ‘some’ into ‘every’. C reverses the first premise. D may be true but isn't forced.
Answer: (A)
⚡ The exam-hall shortcut
‘All A are B’ + ‘Some C are A’ → ‘Some C are B’. See the diagram.
⭕ Venn check
The moot puzzle, drawn
×Moot membersDebatersNational mooters
Statements
  • ▸All Moot members are National mooters
  • ▸Some Debaters are Moot members
Conclusions
  • Some Debaters are National mooters
    ✅ Definitely follows — Debaters inside the moot circle are inside the mooters circle too.
  • All Debaters are National mooters
    🤔 Possible, not certain — Nothing forces it.
  • All National mooters are Moot members
    🤔 Possible, not certain — The premise runs one way only.
  • Some Moot members are not Debaters
    🤔 Possible, not certain — Every moot member might also debate.
shaded = empty× = at least one lives here

Can you complete these CLAT-style arguments?

Three CLAT-style questions, not past-paper ones, built like CLAT's argument passages. Solve each before opening the reasoning.

🧪 CLAT-style practice (not a past question) Conclusion blank
For a decade, the city's annual report has led with one number: saplings planted. Last year it was a record 12 lakh, and the mayor's office called the city ‘greener than ever’. The forest department's own audit disagrees. Fewer than one in three roadside saplings survived two summers, because no one was paid to water them after the planting ceremony. Satellite data shows tree cover has barely changed in ten years. Planting is cheap, photogenic and easy to count; keeping a tree alive for five years is none of those things. A city that reports the first and ignores the second ____

Which of the following most logically completes the passage?

Ashould stop planting saplings, since most of them die
Bis measuring the effort it is proudest of, not the result it needs
Cwill see heat readings fall once the 12 lakh saplings mature
Dproves that satellite data beats audits
Reveal answer + reasoning
Answer: B
Signal: the blank completes a claim about the city's reporting habit. Map: planting is counted, survival isn't, cover hasn't grown. Predict: the city counts the wrong thing. B says it plainly. Tap the options below.
🔬 Option autopsy
Option autopsy: the sapling count

Guess the trap, then tap.

A should stop planting saplings, since most of them die Tag it
📢 Too strong / extreme
The passage blames neglect after planting, not planting.
B is measuring the effort it is proudest of, not the result it needs Tag it
✅ Correct
Exactly what ‘reports the first and ignores the second’ sets up.
C will see heat readings fall once the saplings mature Tag it
🔄 Opposite direction
Most saplings die within two summers, so most won't mature.
D proves that satellite data beats audits Tag it
🛸 Out of scope
Both sources agree; the passage never ranks them.
📢 Too strong / extreme✅ Correct🔄 Opposite direction🛸 Out of scope

Guess the trap behind each option, then tap to check. Wrong options fail in a handful of predictable ways.

🧪 CLAT-style practice (not a past question) Reason blank
Colleges that enforce a 75% attendance rule like to point out that students who attend regularly score higher. One college's figures are typical: students above 90% attendance averaged 68% marks; those below 60% averaged 51%. The college concludes that the rule improves learning and should be tightened to 85%. The figures, however, cannot carry that conclusion, because ____

Which of the following most logically completes the passage?

Astudents who already care about their grades are also the ones most likely to attend, rule or no rule
Bthe gap between 68% and 51% is too large to be a coincidence
Csome students with low attendance still score well
Dan 85% rule would be harder for students to meet
Reveal answer + reasoning
Answer: A
Signal: ‘because’ after ‘cannot carry that conclusion’: say why the figures fail. Map: attendance and marks rise together, so the college credits the rule. Predict: something else, like motivation, could drive both. A names it.
Why the others fail
  • B — Opposite: it backs the college's reading.
  • C — Half-right: a few exceptions don't undo an average gap.
  • D — Beside the point: difficulty says nothing about cause.
🧪 CLAT-style practice (not a past question) Conclusion after a turn
Supporters of a four-day school week point to pilot schools where attendance rose and teachers reported less burnout. Parents surveyed at those schools were mostly happy too. But the pilot schools were all in towns where most parents work from home or on flexible shifts. In districts where both parents work fixed hours, a fifth weekday off means paid childcare or a child left alone. The pilot's success, then, ____

Which of the following most logically completes the passage?

Aproves the four-day week should be adopted in every district
Bmay say more about the families it served than about the four-day week itself
Cshows that teacher burnout is the main problem in schools
Dwas caused by parents working from home
Reveal answer + reasoning
Answer: B
Signal: ‘But’ turns the passage; ‘then’ asks for the conclusion of that turn. Map: the pilot's families were unusual; fixed-hours families face childcare costs. Predict: the result may not travel. B, and modestly (‘may say more’).
Why the others fail
  • A — Wrong direction: the supporters' view the ‘But’ pushes against.
  • C — Overshoot: burnout is one benefit, mentioned once.
  • D — Too strong: unusual families don't prove they caused the results.

Which completion myths cost marks?

💥 Myth vs fact
Traps students fall for
🙅 Myth
The best completion is the most dramatic one.
Tap to bust it →
✅ Fact
The best one is what the premises force. Drama means overshoot.
🙅 Myth
If an option is true, it can complete the argument.
Tap to bust it →
✅ Fact
It must also follow. A true fact the premises don't point to is a topical decoy.
🙅 Myth
A completion can never add new information.
Tap to bust it →
✅ Fact
A conclusion blank can't. A ‘because’ blank can, if the new fact bridges the gap.

Quiz: finish these five

🎯 Quick quiz
Complete the argument quiz
0 / 5
Ride-hailing apps raise fares when demand spikes, and riders hate it. Yet surge pricing does something a flat fare cannot: it pulls drivers who were heading home back onto the road, exactly when riders are stranded. Cities that capped surges during festival weeks found waiting times doubled and complaints rose rather than fell. A cap protects riders from high fares only by ____

Q1. Which option best completes the passage?

The school's new rule bans packed lunches so that every student eats the canteen's ‘balanced meal’ instead. The principal says this will improve nutrition, since many tiffins are full of instant noodles and chips, and a fixed menu lets the school control what children eat. Many parents are not convinced by the plan, and they have a point, because ____

Q2. Which option best completes the passage?

Q3. ‘The library stays open past midnight only if twenty students sign the register. Last night it stayed open past midnight. Therefore ____’

Q4. A passage ends: ‘The plan looks cheap on paper. But ____.’ The blank must:

Q5. ‘Most users of a new revision app improve their mock scores. But most start using it just after joining a coaching batch. So ____’

🎯 Complete the argument in a nutshell
  • The word before the blank sets the job: conclusion, reason, turn or condition.
  • Signal → Map → Predict → Test, and predict before the options.
  • Two tests: does it follow, and does it stop in time?
  • A ‘because’ blank may add a fact; a ‘therefore’ blank may not.
📎 Cheat sheet
  • ‘most logically completes’ + therefore/so → conclusion blank → where every premise points, modestly.
  • …because / since ____ → reason blank → what fact would make the stated conclusion follow?
  • …but / yet ____ → turn blank → push against the sentence before.
  • …unless / only if ____ → condition blank → the one thing whose absence sinks the claim.
  • ‘If P then Q’ + not Q → not P. ‘P only if Q’ + P → Q.

Frequently asked questions

What are complete the argument questions?
They give an argument that stops at a blank and ask which option most logically completes it. Usually the blank is the conclusion, but it can be a missing reason after ‘because’ or a turn after ‘but’. The right option follows from the premises and claims no more.
Has CLAT asked complete the argument questions?
In our map of every CLAT UG Logical Reasoning question from 2018 to 2025, none uses this stem. The skill still matters: predicting where premises point is how you solve main-point, inference and must-be-true questions, which appear in every paper.
How do you choose the right option to complete an argument?
Read the word before the blank to see its job. Strip the premises to one line each, predict the ending in your own words, then test each option: does it follow, and does it stop before claiming more than the premises support?
Is completing an argument the same as finding an assumption?
Not quite. A conclusion blank is closer to an inference: the passage supports the option. A ‘because’ blank is closer to an assumption: the option supports the conclusion and may add a new fact to bridge the gap.

Keep going

📚
Part of the chapter
Inference & Conclusion in CLAT Logical Reasoning
See how this topic fits the whole of Inference & Conclusion →

Connected topics in other chapters

Every topic in Inference & Conclusion

  1. 1.What Is an Inference? “Can Be Inferred” Questions in CLAT Logical Reasoning
  2. 2.“According to the Passage” and “Which Is NOT True” Questions
  3. 3.Main Point, Central Idea and Best Title
  4. 4.“The Author Would Most Likely Agree” Questions
  5. 5.“Must Be True” Questions: Valid vs Merely Likely
  6. 6.Statement and Conclusion: Which Conclusion Follows?
  7. 7.Complete the Argument: Fill-in-the-Blank Conclusions (you're here)
  8. 8.Extreme Words and Scope Traps: “All”, “Only”, “Always”
  9. 9.“What Does the Author Mean?” Reading One Line Right
  10. 10.Syllogisms: All, Some, No and the Venn Method
  11. 11.If, Only If, Unless, Either–Or: Conditional Statements
  12. 12.Seating Arrangement: Linear, Two-Row and Circular
  13. 13.Grid Puzzles: Matching People, Things and Days
  14. 14.Ordering, Ranking and Logical Sequence
  15. 15.“Most Likely Outcome” Questions: Applying the Argument

Ready to practise?

Free CLAT UG drills, sectional tests and full mocks in the real exam-screen format — timer, palette, instant scoring and solutions.

Practise Inference & Conclusion drills →