She was so amused with the magician’s tricks that she a smile.
A. burst out
B. burst into
C. burst forth
D. burst in
网友回答
A. burst out
(答案→)B. burst into
C. burst forth
D. burst in
解析：短语辨析。 A.突发；摆脱 B.闯入；情绪突然发作 C. 突发 D. 突然出现。句意：魔术师的把戏让她觉得是如此好玩，因此她突然笑了出来。故选B。