Вставьте артикли, где это необходимо. 1. you must go to swimming pool in morning. 2. you must not play football in classroom. 3. you must play piano every day. 4. you must help about house. 5. he must come home from school at 3 o~clock. 6. i mustn~t watch tv in morning. 7. she must sing second song.

1) You must go to the swimming pool in the morning.
2) You must not play football in the classroom.
3) You must play the piano every day.
4) You must help about the house. 
5) He must come home from school at 3 o'clock.
6) I mustn't watch TV in the morning.
7) She must sing the second song.