学科：高中英语
版本：人教版
年级：高三上册
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级别：试题
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发布时间：2010-07-07
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21.The bird ______ its wings and flew to the south.

A. beat B. hit C. strike D. struck

22. Dr. Frank failed many times but he finallyto find a successful way to solve the problem.

A. broke off B. broke up C. broke down D. broke through

23. The class is unusual _______ the students are all over fifty and none of them attended the middle school when they were young.

A. in how B. in what C. in which D. in that