Ifyouworkhard________English,y

发布时间:2020-07-28 15:47:14

If you work hard ________ English, you'll do well ________ it.A.in; atB.at; inC.in; inD.at; at

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B解析“在某方面努力学习”用work hard at;“在某方面干得好”,用do well in。
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