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.