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. would
B. must
C. could
D. should
Answer: Option B
Solution (By JKSSB Mock Tests)
'Must have' deduction.

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Practice More Modals Questions

Question #1
He ___ have been a detective; he notices everything.
A. would
B. could
C. must
D. should

Correct Answer: Option B


Explanation:
'Could have' past potential.

This question belongs to: English Modals
Question #2
I ___ not attend the seminar; I had a family emergency.
A. could
B. might
C. may
D. can

Correct Answer: Option A


Explanation:
'Could not' past inability.

This question belongs to: English Modals
Question #3
___ I use your charger?
A. Should
B. Would
C. Must
D. May

Correct Answer: Option D


Explanation:
'May' permission.

This question belongs to: English Modals