He ___ have been the culprit; he had a solid alibi. MCQ with Answer and Explanation

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He ___ have been the culprit; he had a solid alibi.

A. mustn't

B. couldn't

C. wouldn't

D. shouldn't

Answer: Option B

Solution (By JKSSB Mock Tests)

'Couldn't have' past impossibility.

This question belongs to: English Modals

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Practice More Modals Questions

Question #1

He ___ be very wealthy; he owns a yacht.

A. shall

B. can

C. may

D. must

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Correct Answer: Option D

Explanation:
'Must' deduction.

This question belongs to: English Modals

Question #2

He ___ not remember me; we met years ago.

A. can

B. should

C. may

D. must

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Correct Answer: Option C

Explanation:
'May not' possibility of not remembering.

This question belongs to: English Modals

Question #3

That ___ be the answer; it's illogical.

A. shouldn't

B. needn't

C. can't

D. mustn't

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Correct Answer: Option C

Explanation:
'Can't' shows impossibility.

This question belongs to: English Modals

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