Question

【题目】What ________ Bill？He looks very worried.

A. happened to B. was happened on

C. was happening to D. was happening on

Answer 1

【答案】A

【解析】试题分析：句意：Bill发生什么事了？他看起来很着急。“某人出了什么事”用sth happen to sb；happen是不及物动词，不能用于被动语态，故排除B；根据He looks very worried可知，本题不能用过去进行时。故排除C,D。故选A。