问题补充:
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
答案:
A. broke in
B. broke down
(答案→)C. broke up
D. broke out
解析:句意:这个男孩太粗心了,镜子从他的手中落在地板上,摔碎了。broke in闯入broke down垮掉 broke up摔碎 broke out爆发,选C。