Who was it ______ drove her home last night?
填 that 肯定是可以的,请问可以填 who 吗?会不会跟前面句首的 who 重复,若真可以,麻烦老师提供一下出处或依据,谢谢!
填 who 也完全可以。如下面的内容摘自《大学英语语法》: