[ Modal Verbs ]
They ____ be back by now; the movie ended an hour ago.
A. should
B. can
C. might
D. must
Select your answer:

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Grammar › ViewThey are ……. TV
A. watch
B. watching
Tenses › View
Salleh _____ so tired last night. He _______ barely stay awake.
A. is, can
B. was, can
C. was, could
D. were, could
