Question

【题目】The air in the room smells terrible. There must be some people________inside.

A.smokeB.to smokeC.smoking

Answer 1

【答案】C

【解析】

句意：房间里的空气闻起来有点难闻，一定有人在里面吸烟了。

考查非谓语动词。smoke动词原形；to smoke不定式；smoking现在分词；根据句子结构there be sb. doing sth.有人在做某事，可知是现在分词作定语修饰people；故选C。