问题
选择题
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
答案：C
词义辨析。broke in插话，闯入；broke down崩溃，倒塌；broke up分裂，破碎；broke out爆发。句意：这个男孩如此粗心以至于玻璃从他的手里掉下来摔碎在地上。所以选C。