问几道英语题目　顺便写一下理由吧

问几道英语题目　顺便写一下理由吧
1 John does not like that story because there is nothing____ .
a) learn b) to learn from c) to learn from it d) to learning
2 Miss Xu is always the last____the office.
a) leave b) to leave c) leaving d) to leaving
3 I do not think ___is ture.
a) when he said b) what did he say c) how he said d) what he said
4 we should not judge a person by his___(appear)
5 Adam left fifteen minutes ago.(保持句意基本不变）
Adam has ___　___for　fifteen minutes ．