Answer:
1. He's tall, isn't he?
2. They're not coming soon, are they?
3. She does basketball, doesn't she?
4. We weren't at the party yesterday, we're we?
5. You can drive, can't you?
6. She did a lot of work, didn't she?
7. They must keep the kitchen clean, musn't they? ( This one's kind of hard sorry if it's not correct, but I believe it is)
8. You'll come to my recital, won't you?
9. We won't be excepted to help, will we?
10. They've started on their homework, haven't they?
11. He could just walk to school in the morning, couldn't he?
12. She wouldn't steal anything from the store, would she?