[ Grammar ]
They _________ the exercises every day.
A. is
B. do
C. did
D. does

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Modal Verbs › ViewYou _________ translate word for word to learn a language. (It’s not necessary)
A. can
B. mustn’t
C. have to
D. can’t
E. don’t have to
Articles & Quantifiers › View
___________ people were waiting for the interview outside.
A. An amount of
B. A great deal of
C. A little
D. A number of
Grammar › ViewWhen you are on duty (đang trực), your uniform ……………..at all times
A. must be worn
B. must wear
C. must have worn
D. must have been worn
Vocabulary › View
Find the synonym of observer.
A. veto
B. chronic
C. spectator
D. mimic