1) isn't watching. He is sleeping because he is tired.
2) isn't cooking. She is talks
3) am not drinking. I am writing
4) don't drink. I am drinking
5) Are your friend doing
6) Do your
7) is sleeping
8) sleep
9) doesn't work
10) isn't sleep now.
11) get up
12) What is your sister doing now? She is washing
13) come come
14) works. works
15) Does your sister study? no she doesnt She goes
16) goes
17) isn't playing. Plays
18) listen
19)is making
20) Are you reading, thinking