1. is doing 
2. isn't cooking 
3. amn't swimming
4. is wearing 
5. is .... playing 
6. aren't studying 
7. am dancing 
8. are travelling 
9. isn't talking 
10. are ... prepairing

1- is doing

2-isn't cooking

3-am not going

4-is wearing

5-Is___playing

6- are not studying

7-am dancing

8-are traveling

9-is not talking

10-Are___preparing