求助各位大侠一个英语单选题He finds his mother has changed a lot,quite dif
求助各位大侠一个英语单选题 He finds his mother has changed a lot,quite different from ____ she was five years ago. A.who B.that C.how D.what 请各位告诉这个题目是什么考点,为什么选择D选项. 最好能够再帮我找几个此类的别的考题, ABC三项不选的原因 希望您能给我一个比较完整详细的解析。