There is a crowd of people in front of the house over there. What do you suppose there?A.

发布时间：2020-08-16 12:54:02

There is a crowd of people in front of the house over there. What do you suppose
     there?
A. is happened
B. has happened
C. happening
D. to have happened

网友回答

A. is happened
(答案→)B. has happened
C. happening
D. to have happened
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