1) 2. He is waiting for a bus.
3. They are playing football.
4. He is lieing on the floor.
5. They are having a breakfast.
6. She is sitting on the table
2) 2. He is cooking.
3. You are standing on my foot.
4. Somebody is swiming in the river.
5. We are going...
6. She is having...
7. They are building...
8. I staying now.
3) 3. She is siting on the floor.
4. She isn't reading a book.
5. She isn't playing the piano.
6. She is laughing.
7. She is wearing a hat.
8. She isn't write a letter.
4) 3. I am siting on the chair.
4. I amn't eating.
5. It's raining. OR It isn't raining.
6. I am learning English.
7. I amn't listening to music.
8. The sun is shining. OR The sun isn't shining.
9. I am wearing a shoes.
10. I amn't reading a newspaper.