[ Modal Verbs ]
we___________________be at the ticket office by 9 o’clock or there won’t be any left to buy.
A. can
B. must
C. have

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Grammar › ViewWe ________virtual classes these days.
A. attends
B. are attending
C. were attending
D. attended
Adjectives and Adverbs › View
The cat waited _____ for the mouse to come out of the hole.
A. silent
B. silently