6My brother has not come back
7Last week, I saw the movie
8In 1992, he lived here
9The dictionary I have bought three
6.My brother has't come back yet.
7.I saw the film last week.
8.He lived here in 1992.
9.I have bought this dictionary.
注意,第9个。应该是I have bought this dictionary.miss米的不对哟,他那个是定语从句了,句子不完整,没有主句!