9. Isn't Mary reading a book in her room?
10. Haven't you just used the computer?
11. Aren't there many interesting programs tonight?
12. Do they ever go to the theater?
13. Your brother likes watching TV, doesn't he?
14. Mary isn't reading a book in her room, is she?
15. His parents will buy him the new game. won't he?
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III
1. Your brother likes watching TV, doesn't he?
2. Mary is reading a book in her room, isn't she?
4. You have just used the computer, haven't you?
7. You are late for the party, aren't you?
10. They never go the theater, do they?
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IV.
1. does she
2. did she
3. won't they
4. can't she
5. may she
6. shouldn't we
7. hasn't she