1. -May I use ____ mobile phone ？
-Sorry， ____is left in the office．
2. —Whose book is this? Is this yours?
—No, it’s _____
3. --- Dad， have you seen my Christmas card？
--- ______ you painted last night？ I'm afraid I haven't seen ______．
4. Teenagers should be allowed to wear __________own clothes.
5. Normally， a forest fire and the damage _______ causes can be very extensive， especially when you consider the financial and physical losses．
6. Peter enjoyed ______ at his birthday party last night.
7. The newly built cafe, the walls of ______ painted light green, is really a peaceful place for us, especially after hard work.
