英语翻译

1.We had had supper before you came here.
2.She had bought a gift before she visited her sister .
3.I had red newpapers before i watched TV .
4.After he finished his test,he came to America.
5.I found a pair of glasses on the desk this morning.
6.I was watching TV last night 8 o'clock.
7.When i was washing the dishes my mother phoned me.
8.John have swallowed two coins.
9.I have written 3 letters for him.