[题目]There is a police car in front of our neighbor’s house. What do you suppose ?A.did happenB.has happenedC.is happenD.has been happened 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】There is a police car in front of our neighbor’s house. What do you suppose _______?
A.did happen
B.has happened
C.is happen
D.has been happened

【答案】B
【解析】happen用主动表被动。根据句意应用现在完成时，故选B。

练习册系列答案

A. buried his head B. burying his head

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A. that have led to B. which has caused

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