[ Modal Verbs ]
She ________ have left her keys at the office; she was there all day.
A. mustn’t
B. can’t
C. shouldn’t
D. mightn’t
Select your answer:
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a. lather
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Grammar › View
You _____ apologise; it isn’t necessary.
A. have to
B. don’t have to
C. must
D. mustn’t