1 am not drinking, am writing
2 don't drink, drink
3 is (your friend) doing
4 does (your friend) go
5 is sleeping
6 sleeps
7 doesn't work
8 isn't sleeping, is working
9 get
10 (what) is (your sister) doing, is washing
11 (when) do (you usually) come, come
12 (where) does (your cousin) work, works
13 does (your sister) study, studies
14 goes
15 isn't playing, plays