recent study shows that regular review leads to improved per

来源：学生作业帮编辑：搜狗做题网作业帮分类：英语作业时间：2024/08/07 00:55:37

recent study shows that regular review leads to improved performance on test
(a)improve (b) improves (c) improved (d)improvement,请问大侠,为什么选C呢,

这里是过去分词做定语,修饰performance,说明是有了提高的的表现.a和b是原形或一般现在时,肯定不可以的.D是名词,只有C可以充当形容词.很多动词的现在分词和过去分词可以做形容词.如exciting,boring,tired,等等

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