The audience waited until the curtain rose and then laughter at the sight of the funny actor.
A. burst out
B. burst into
C. broke into
D. began with
网友回答
A. burst out
(答案→)B. burst into
C. broke into
D. began with
解析：burst out突然……起来； burst into突然……起来； break into闯入； begin with以……开始。burst out+doing；burst into+名词；这里laughter是名词，根据句意故选B。