Pratt failed many times but he finally ____ to find a successful way to solve the problem.
#65400
A
broke out
B
broke up
C
broke down
D
broke through
推荐题目
 How many men does your uncle _____ for him?
#73745
A
have worked
B
have to work
C
have working
D
have been working
In autumn, leaves turn yellow and _________ the trees.
#72146
A
fall out
B
fall off
C
fall down
D
fall over