改错Who is the man whom you said helllo just now?我在whom 前加to .但答案把whom 改成that.不懂,

问题描述:

改错Who is the man whom you said helllo just now?我在whom 前加to .但答案把whom 改成that.不懂,
请你帮忙,非常感谢。

正确的答案是:
Who is the man that you said hello to just now?是要为了避免重复.其他的如:
who is the man that you talked about just now?