[ Passive Voice with Modals ]
Choose the best answer:
Meat … in the refrigerator.
A. must be keep
B. must be kept
C. must keep
D. must keeping

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Modal Verbs › ViewAfter completing his training, John ___ speak fluent Mandarin. He didn’t focus too much.
A. can’t
B. could
C. couldn’t
Grammar › View
Randy needs a haircut_______ he does not have any money.
A. or
B. but
C. for
D. nor
Present Perfect, Present Simple, Present Continuous › ViewAt the moment, he __________ music.
A. is listening to
B. are listening to
C. listens to
D. listen to
Grammar › View
We _______ new stories in our English class these days.
A. haven’t been reading
B. hasn’t been reading
C. aren’t reading
