다음 문장들 중 어법상 적절하지 않은 것은?


1 This girl who I thought was very beautiful started to become ugly.

 2 What I am is different from what I was and I do what I want now.

3 I feel alone because there is no one that I know who is in my situation.

4 Civility is not a sign of weakness and sincerity is always subject to prove.