题目内容：

Anyone （ ）this opinion may speak out.A.that againstsB.that against C.who is againstD.who are
against
为啥选C?

优质解答

anyone 是人,所以用人称代词who.
be against sth, 反对某事,against是介词,不能像A和B一样当动词用,前面不能丢掉be.
D就更不对了,根本就不知所云

追问：

可先行词anyone是不定代词，关系代词应用that啊？？？？？

追答：

是人，用who 只有在强调句型的时候才可能用that.