Ответ:

1.Alan was looking for a new job, wasn't he?

2.You must study harder for your exams, mustn't you?

3.I called Sam yesterday, am I not?

4.They take the dog for a walk, don't they?

5.Miss Simpson is typing letter, isn't she?

6.The children weren't watching a play, were they?

7.They go to the restaurant every Sunday, don't they?

8.Tom has read this book four times already, hasn't he?

9.Sally hasn't had lunch, has he?

10.Boss will write some letters, won't he?

11.The train hadn't left, had it?

12.I'm a pupil, am I not?

13.Tony won't work in the garden, will he?

14.Peter was taller than his brother, wasn't he?

15.Jack wanted to leave the party, doesn't he?

16.That isn't your bag, is it?

17.He will open the shop in winter, won't he?

18.Emma sent Kate an invitation yesterday, doesn't she?

Надеюсь правильно поняла и сделала.