Объяснение:

1) it would be the perfect opportunity, wouldn't it?

2) she hasn't returned my call, has she?

3) we can't play football, can we?

4) you won't be late, will you?

5) she wants my help, doesn't she?

6) you didn't work yesterday, did you?

7) there isn't milk in the fridge, is there?

8) it is a my dog, isn't it?

9) we have a big car, haven't we?

10) you don't read a book every Sunday, do you?