She ___ be at the dentist; she had an appointment. MCQ with Answer and Explanation

She ___ be at the dentist; she had an appointment.

A. may

B. shall

C. can

D. must

Answer: Option D

'Must' deduction.

This question belongs to: English Modals

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Question #1 Report Error

Visitors ___ feed the animals.

A. could not

B. might not

C. need not

D. must not

Correct Answer: Option D

Explanation:
'Must not' indicates prohibition.

This question belongs to: English Modals

Question #2 Report Error

She ___ have been sleeping when I called.

A. would

B. could

C. must

D. should

Correct Answer: Option C

Explanation:
'Must have been' deduction about past action.

This question belongs to: English Modals

Question #3 Report Error

___ we go to the beach instead?

A. Must

B. May

C. Shall

D. Will

Correct Answer: Option C

Explanation:
'Shall' suggestion with 'we'.

This question belongs to: English Modals