As we came to the work site, the workers were seen the new house.A. buildingB. build C. bu

发布时间：2020-08-16 13:16:09


As we came to the work site, the workers were seen     the new house.
A. building
B. build
C. built
D. to build

网友回答

(答案→)A. building
B. build
C. built
D. to build
解析：考查非谓语动词。本题考查see sb doing结构，用其被动语态即为sb be seen doing。句意：当我们来到工地的时候，我们看到工人正在建新房子。
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