Th problem which the air pollution in cities has become more and more serious.这个句子用which 还是只能用of

分类: 作业答案 • 2021-12-20 02:57:02

问题描述：

Th problem which the air pollution in cities has become more and more serious.
这个句子用which 还是只能用of

答

只能用of,用which不正确.
因为用which的话就是用which引导一个定语从句 “which the air pollution in cities”,而这个句子是没有谓语的,所以不正确.