题目内容

That suit __ over 60 dollars.

A. had costed
B. costed
C. is costed
D. cost

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___ many times, the boy still didn't know how to do the exercises

A . Having taught
B . Having been taught
C . taught
D . Teaching

Some of the hotels in my hometown_________.

A . have now been rebuilding
B . are now rebuilding
C . are now being rebuilt
D . are rebuilt now

--- What do you think of the book? ---Oh, excellent. It's worth ___ a second time.

A . to read
B . to be read
C . reading
D . being read

This page needed ___ again.

A . being checked
B . checked
C . to check
D . to be checked

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