which/that 在定语从句中的使用问题
问题描述：
which/that 在定语从句中的使用问题
This is the biggest playground that we have ever built.这样对么?那么 This is the biggest playground which we have ever built呢?
答
不可以用which共有七种情况下只能用that 不能用whichA.先行词是*形容词或者它的前面有*形容词时eg.This is the best that has been used against pollution.English is the most difficult subject that y...