Ответ:2)You don't know his sister.

3)He doesn't speak Thai.

4)I don't have a dog.

5)They don't study languages.

6)It doesn't go to Leeds.

7)She doesn't get up at 6 a.m.

8)We don't stay at home.

Объяснение:

Тут все в форме Present Simple. В Present Simple в отрицательной форме используются DO, DOES (donʼt, doesnʼt)