Помогите пожалуйста, очень надо( Раскройте скобки, употребляя глаголы в форме Present Continuous или в Past Continuous
1. He (to write) a letter now.
2. He (to write) a letter at two o'clock yesterday.
3. She (to do) her lessons now.
4. She (to do) her lessons at this time yesterday.
5. My friend (not to sleep) now. He (to watch) television.
6. My friend (not to sleep) at eight o'clock yesterday. He (to watch) television.
7. She (to listen) to the music at the moment?
8. She (to listen) to the music at this time yesterday.
9. They (to play) chess when I saw them yesterday.
10. They (to play) chess now.
11. Listen! My son (to sing).
12. He (to sing) when I (to enter) his room yesterday.
13. Why they (to work) in the garden? - They (to plant) flowers now.
14. Beth (to wear) a new dress now.
15. She (to play) the piano when I came in.

1is writing2was writing3is doing4was doing5is not sleeping,is watching6wasn't sleeping,was watching7Is she listening....?8was listening9were playing,10are playing11is singing12was reading,entered13why are they working.....?,are planting14is wearing15was playing

is writing was writing is doingwas doing isn't sleeping , is watching wasn't sleeping , was watching is she listening was listening were playing are playing is singing