Itwassuchafunnyshowthatpeoplecouldn'thelp

来源：语文精选馆 2.05W

It was such a funny show that people couldn't help ____________again and again.

A. laugh B. to laugh C. laughing

【解析】选C。考查固定搭配。can’t help doing sth. 意为“禁不住做某事”，此处句意为：这是一场如此有趣的表演,以至于人们忍不住笑了一次又一次。故选C。