On seeing Jay Chow appear on the stage, the audience cheering.
A. burst into
B. burst out
C. burst in
D. burst on
网友回答
A. burst into
(答案→)B. burst out
C. burst in
D. burst on
解析：考查固定词组。固定词组突然…起来burst into+名词；burst out doing；本题横线后面给出cheering,说明前面是burst out,故B正确。