【题目】The boy was so careless that the glass fell from his hand and it ______ on the floor.
A. broke in B. broke down
C. broke up D. broke out
在线课程【答案】C
【解析】本题考查动词词组词义辨析。本句句意为：那个男孩子如此粗心以至于他手的杯子掉了下来，在地板上摔碎了。Break in插嘴；break down崩溃、坏了；break up分手、摔了；break out爆发，根据句意，可知答案C符合语境。