Ex. 1

1 did

2 they

3 aren't 

4 isn't he

5 doesn't she

6 aren't they

7 has

8 weren't they

9 wouldn't she

10 am not 

Ex.2

1 isn't she

2 shouldn't you 

3 did she

4 haven't they

5 can he

6 shouldn't we

7 aren't them

8 have you

Ex.3

1 is it

2 aren't they

3 can't they

4 haven't they

5 aren't they

6 havent you 

7 do they

8 would they