Помогите , пожалуйста! Срочно!!!
Заранее спасибо!

1.
1. After 2 on 3 for 4 in 5 with 6 back 7 at
2
1 was walking
2 doesn't fit
3 did Peter do
4 is doing
5 sing
6 didn't go
7 used
3
1 who
2 whose
3 which
4 where
5 why
6 when