[ 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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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