Здравствуйте, прошу помощи по 1,2,4 заданию.

Ex.1 
1. leaves
2. is leaving
3. watch
4. are sitting, are watching 
5. does
6. is doing
7. rains
8. is raining
9. has
10. is having 

ex.2
1. played
2. was playing 
3. played 
4. were playing 
5. was Nick doing 
6. were you doing 
7. didn't sleep 
8. did he do, read 
9. was he doing, was reading 
10. was she sleeping 

ex. 4 
1. is
2. are
3. are
4. is
5. are