She ___ be the one who sent the flowers; there's no card. MCQ with Answer and Explanation

She ___ be the one who sent the flowers; there's no card.

A. can

B. may

C. shall

D. must

Answer: Option D

'Must' deduction.

This question belongs to: English Modals

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Question #1 Report Error

They ___ have left without telling us; that's rude.

A. shouldn't

B. wouldn't

C. couldn't

D. mustn't

Correct Answer: Option A

Explanation:
'Shouldn't have' criticises past action.

This question belongs to: English Modals

Question #2 Report Error

You ___ not miss this opportunity; it's once in a lifetime.

A. may

B. can

C. should

D. must

Correct Answer: Option C

Explanation:
'Should not' strong advice.

This question belongs to: English Modals

Question #3 Report Error

You ___ not spend all your money on games.

A. can

B. should

C. must

D. may

Correct Answer: Option B

Explanation:
'Should not' advice.

This question belongs to: English Modals