题目

You should get down to your study from now on.Please________what is of great importance for your future development. A.concentrate on                       B.depend on C.put on                               D.take on 答案:A 解析: 句意为:从现在起你应该开始认真学习了,请专心于对你未来的发展是非常重要的事情。concentrate on专心于……,符合句意。depend on依靠,依赖;put on穿上,戴上;take on呈现,承担。  
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