Dr. Frank failed many times but he finally _____ to find a successful way to solve the problem. A. b...
2023-01-27 07:38:18 143次 2010年江苏省高考冲刺试题（二） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Dr. Frank failed many times but he finally
_____ to find a successful way to solve the problem.
A. broke off B.
broke up C.
broke down D.
broke through
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