Ответ:
1. The new regulations will be announced in September.
2. Do they have their dogs walked every day?
3. She has the piano tuned twice a year.
4. The letter will be posted first thing tomorrow morning.
5. When Mr Cobert arrived at the office, he realized his computer had been stolen.
6. The photographs have already been developed.
7. It's worth having the car serviced.
8. She expects to win the November election.
9. They were having their garage painted when I called.
10. Your teeth is to be checked every six months.