[ Modal Verbs ]
I’m completely sure that cats can’t fly. Cats __________________ fly.
A. may
B. might not
C. can’t
D. must
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A. were likely
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The box _______ if you stand on it.
A. breaks
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Reported Speech and Tenses › View
Choose an appropriate modal verb for advice: You __________ take your umbrella; it looks like rain.
A. can’t
B. should
C. may not