B 因为happen 是一个不及物动词,所以没有被动语态,所以A C都被排除了,
句子的意思是自从1978年以来,中国发生了很多事.
A lot of things （ ）in China since 1978 A.was happened B.have happened C.have been happened
A lot of things （ ）in China since 1978 A.was happened B.have happened C.have been happened
D.happened
D.happened
英语人气：742 ℃时间：2019-11-01 10:43:02
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