问题
选择题
I __________ laughter at the sight of the funny actor.
A．burst out
B．burst into
C．broken into
D．began with
答案
答案：B
句意：我一看到滑稽的演员就笑了，burst out爆发；burst out+doing；burst into爆发；burst into+名词；break into闯入； begin with以……开始。因为横线后面是名词“laughter”，故选B。