题目内容

People didn’t know _________ during the night.
A.what was happenedB.what the murder happened
C.what happenedD.how the murder has happened
C

试题分析:句意:人们不知道晚上发生了什么。本句时态是一般过去式,故排除D。happen表示突然发生,无被动。What happened?怎么了,发生了什么。这里what作宾语从句的主语。
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