Arrange the dialogue in the correct order.

1. Is your dad a doctor? That must be very rewarding. 2. Yes, he is a doctor. It is rewarding, but also very hard work! 3. Does he have much time for hobbies? 4. Yes, he loves tennis, that’s his hobby. He plays twice a week. 5. Tennis! That’s athletic. He must be very fit. 6. He certainly is! Maybe we should start playing tennis!