The teaching building of our school for many times.A. has been added to B. has added toC.

发布时间：2020-08-16 12:47:38

The teaching building of our school     for many times.
A. has been added to
B. has added to
C. has been added up to
D. has added up to

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(答案→)A. has been added to
B. has added to
C. has been added up to
D. has added up to
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