题目内容
6.If you buy more,than ten books,we'll reduce the cost of each book ______ 10 percent.( )A. | at | B. | to | C. | for | D. | by |
分析 如果你买十本以上的书,我们会每本书给你打九折.
解答 答案:D 句意表达的是减少的程度,要用by来表示;by加单位量词或数词,表示相差的具体数量或程度.故选D.
点评 介词用法灵活,搭配较多.学习时要注意积累,对常考的搭配结构要注意掌握.
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