David is such a good boy that ___ all the teachers like him A.that B.who C.as D.whom

问题描述:

David is such a good boy that ___ all the teachers like him A.that B.who C.as D.whom

选C
因为从后面的all the teachers like him,可以看出,这是个完整的句子,不是定语从句,而是一个原因状语从句,所以选择C,表示原因.