You ___ not waste electricity. MCQ with Answer and Explanation

You ___ not waste electricity.

A. must

B. can

C. may

D. should

Answer: Option D

'Should not' advice.

This question belongs to: English Modals

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Question #1 Report Error

He ___ have been an athlete; he still holds records.

A. must

B. could

C. should

D. would

Correct Answer: Option A

Explanation:
'Must have' deduction.

This question belongs to: English Modals

Question #2 Report Error

They ___ be home; the lights are on.

A. can

B. shall

C. may

D. must

Correct Answer: Option D

Explanation:
'Must' deduction.

This question belongs to: English Modals

Question #3 Report Error

I ___ not attend the wedding because I had to work.

A. could

B. might

C. can

D. may

Correct Answer: Option A

Explanation:
'Could not' past inability.

This question belongs to: English Modals