[ Modal Verbs ]
He ________ be at home. I see his car from my window.
A. may
B. can’t
C. must
D. could
Select your answer:
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Grammar › ViewThe boys ______ over there are my classmates.
A. are playing basketball
B. who is talking
C. who sings
D. that are singing
Modals › View
You _____ not smoke in the hospital.
A. have
B. has
C. must