题目内容

—Is there anybody in the classroom ?—No, the teacher, together with the students _____ to the playground.

A. go
B. went
C. has gone
D. have gone

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How time flies! Ten years ________ passed

A. have
B. has
C. is
D. are

Many a student ___that mistake before.

A. had made
B. has been made
C. have made
D. has made

All Greek to me

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