1. A. He often goes swimming.   B. Yes, he does.  C. Once a week.

2. A. Every day.    B. By bike    C. Fine, thank you.

3. A. He’s tired.   B. She has a toothache.    C. I can’t sleep.

4. A. Yes, he is.     B. No, he doesn’t.   C. Yes, he does.