recent study shows that regular review leads to improved performance on test
问题描述：
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,
答
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