The students ____ homework has been finished are playing basketball on the playgroun

问题描述:

The students ____ homework has been finished are playing basketball on the playgroun
为什么不能选that 这不是一件事情吗
我英语不太好

这是由WHOSE引导的定语从句,用来修饰the students的.所以不能用that.
希望可以帮到你!