ThebiggesttroubleIcameacross__

发布时间：2020-07-28 11:24:51

The biggest trouble I came across ________ English was how to learn the words by heart.A.to studyB.studyingC.in studyD.study

网友回答

B解析I came across是一个定语从句，用来修饰trouble。此题考查...trouble (in) doing sth.这一结构。
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