－Look! Everything here is under construction.－Oh, has the building once for exhibition be

发布时间：2020-08-16 20:35:29

－Look! Everything here is under construction.
－Oh, has the building once      for exhibition been pulled down, too?
A. being built
B. been built
C. to be built
D. built

网友回答

A. being built
B. been built
C. to be built
(答案→)D. built
解析：
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