She ___ have known about the surprise; she didn't look surprised. MCQ with Answer and Explanation

She ___ have known about the surprise; she didn't look surprised.
A. could
B. must
C. should
D. would
Answer: Option B
Solution (By JKSSB Mock Tests)
'Must have' deduction.

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Practice More Modals Questions

Question #1
She ___ swim when she was three.
A. may
B. can
C. could
D. might

Correct Answer: Option C


Explanation:
'Could' for past ability.

This question belongs to: English Modals
Question #2
___ you mind if I stayed a little longer?
A. May
B. Must
C. Would
D. Should

Correct Answer: Option C


Explanation:
'Would you mind' polite request.

This question belongs to: English Modals
Question #3
She ___ be the one who called; the voice sounded like hers.
A. may
B. must
C. can
D. shall

Correct Answer: Option B


Explanation:
'Must' deduction.

This question belongs to: English Modals