Робятки помогайте,хелп буду очень благодарен плиз!!!!!!!!!;););)
1. They have finished their work, _____________ ?

a) didn’t they b) haven’t they c) have they

2. Kate isn’t watching TV, ______________ ?

a) is she b) isn’t she c) isn’t Kate

3. Bob and Sam play football every Sunday, ___________ ?

a) don’t they b) doesn’t he c) do they

4. The boys can’t swim very well, _____________ ?

a) can he b) can’t they c) can they

5. Our country is rich __________ rivers and lakes.

a) for b) in c) of

6. I am tired __________ doing my homework.

a) off b) on c) of

7. Moscow is famous ___________ its museums and art galleries.

a) in b) for c) of

8. Who is the ____________ of this book ?

a) author b) story c) detective

9. The weather was fine and we spent the whole day in the ________ air.

a) funny b) open c) healthy