What ?A. does happenB. is happeningC. do happenD. are happening

发布时间：2020-08-21 01:21:03

What     ?
A. does happen
B. is happening
C. do happen
D. are happening

网友回答

A. does happen
(答案→)B. is happening
C. do happen
D. are happening
解析：what is happening固定搭配。
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