Topics: Progressive Tense
Tom had been working really hard at the office. Choose the correct tense.
A. past progressive
B. present perfect progressive
C. future progressive
D. past perfect progressive
Select your answer:
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Grammar › ViewCould you please close __________ window? I don’t think it is necessary to open all _______ four.
A. a
B. the
C. some
D. x
Grammar › View
Peter doesn’t have to wait for us. _________
A. need to
B. needn’t