为何要把There are two group of couple which has evidently different 改为There were two groups of

题目

为何要把There are two group of couple which has evidently different 改为There were two groups of
为何要把There are two group of couple which has slightly different 改为There were two groups of cuole with an evident difference 原句在语法上有什么错呢

答案

1.two group中的groupy应该用复数,因为是两对夫妇.
2.which是定语从句,修饰前面的couple,前面已经是复数的情况下,就不应该用has了,对吧?
3.再来,has后面应该是名词,但句子用了different,是形容词了,怎么能用have后面跟形容词呢