1. is having, isn't swimming

2. are you doing, am reading

3. aren't eating, are doing

4. Is it raining, is snowing

5. am not playing, am doing

Объяснение:

1. My dad is having a coffee now. He isn't swimming.

2. What are you doing, Sam? I am reading a book.

3. The children aren't eating sandwiches. They are doing the homework.

4. Is it raining now? No, it is snowing.

5. I am not playing. I am doing my English.