She ___ be at work; it's Sunday. MCQ with Answer and Explanation

She ___ be at work; it's Sunday.

A. shouldn't

B. mustn't

C. needn't

D. can't

Answer: Option D

'Can't' impossibility.

This question belongs to: English Modals

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Question #1 Report Error

You ___ not touch the thermostat.

A. need

B. must

C. can

D. may

Correct Answer: Option B

Explanation:
'Must not' rule.

This question belongs to: English Modals

Question #2 Report Error

___ you like to go for a swim?

A. Would

B. Could

C. Should

D. Must

Correct Answer: Option A

Explanation:
'Would you like' invitation.

This question belongs to: English Modals

Question #3 Report Error

He ___ not go out alone at night when he was a child.

A. can

B. could

C. might

D. may

Correct Answer: Option B

Explanation:
'Could not' past prohibition/lack of permission.

This question belongs to: English Modals