When the audience heard the funny story they laughter.A. burst outB. burst intoC. broke

问题补充：

When the audience heard the funny story, they laughter.

A. burst out

B. burst into

C. broke out

D. broke into

答案：

A. burst out

(答案→)B. burst into

C. broke out

D. broke into

解析：句意为：当观众朋友们听到这个滑稽的故事时，他们突然发出了阵阵笑声

A.闯出来；突发；摆脱 B闯入；情绪的突然发作 C爆发，发生 D闯入

固定短语：burst into laughter突然笑出来