1.His cousin doesn't have a tennis racket.[拼错了是cousin吧]
Dose his cousin have a tennis racket?
Yes,he does./No,he doesn't.
2.Her cousins don't have a basketball .
Do her cousins have a basketball?
Yes,they do./No,they don't.
3.My friend doesn't have a black dog.
Dose your friend have a black dog
Yes,he does./No,he doesn't.
4.You don't have many sports collectiong.
Do you have many sports collectiong?
Yes,I do./No,I don't
5.We don't play tennis erery day.[拼错了是day吧]
Do you play tennis erery day?
Yes ,we do./No,we don't.