You must concentrate your study not on your clothes.A. on B. with C. in D. to 题目和参考答案——青夏教育精英家教网—

题目内容

You must concentrate _____ your study not on your clothes.

A. on B. with C. in D. to

【解析】

试题分析：句意：你必须集中精力在学习，而不是在衣服上。on在……上；with用； in在……里；to向。concentrate on集中精力于；故选A。

考点：考查介词的用法。

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