TAG QUESTIONS (Present & Past) Positives and Negatives  Find and correct
the mistakes in the tag questions below.
1. They live in San Francisco, aren’t they?
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? ______________