They live in San Francisco, aren't they? did he 2. He didn't buy the chairs, doesn't they? 3. We are late, do we? 4. He can't swim, does he? 5. She was a student, isn't she? 6. Thomas saw a movie, wasn't he? 7. He couldn't answer the question, did he? 8. Mr. Smith was late, wasn't she? 9. They had dinner, were they? 10. Your sister bought a new house, didn't it?