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1/
1. They often play soccer, table tennis or badminton.
2. Sometimes they go swimming in the swimming pools.
3. In the school music room.
4. They usually rehearse plays.
5. They often get together and talk about their stamps.
6. Yes, they do.

2/
1. They take part in different activities at recess.
2. Yes, they do.
3. They swap baseball cards.
4. Yes, they are.

3/
1. Yes, there is.
2. There are a lot of books, novels, readers, magazines, newspapers and pictures.
3. It closes at 4.30 in the afternoon.
4. He often goes there.