Question

【题目】Mike is often heard________in his room.

A.sangB.to singC.sing

Answer 1

【答案】B

【解析】

句意：人们经常听到迈克在他的房间里唱歌。

考查hear的被动语态。sang过去式；to sing动词不定式；sing动词原形；sb be heard to do sth表示“某人经常被听到做什么”，此处动词不定式作主语补足语，根据“often”可知缺动词不定式，可推测出此处是“to sing”，故选B。