用所给词语的适当形式填空。

1. We will go _____ ( sightsee ) in Beijing this summer vacation.

2. Mike is going summer _____ ( camp ) with his friends for vacation.

3. There are many American _____ ( tour ) in the beach today.

4. "I'm going to Tibet for a week."  "That sounds _____ ( interest )."

5. "Where is Ann?"   "She is _____ ( babysit ) her little sister at home.

6. Could you please send _____ ( I ) a postcard from Hong Kong?

7. I'm going to my _____ ( cousin ) house to have dinner with her family.

8. Why not _____ ( take ) a vacation in Europe?

9. She will finish _____ ( do ) her homework in ten minutes.

10. Would you like to go bike _____ ( ride ) this afternoon.

11. He hopes they can have a very _____ ( excite ) vacation in the mountains.

12. Mr. Smith thought about _____ ( visit ) the Summer Palace with his friends.

13. I think Qingdao is a good place _____ ( go ) sightseeing.

14. Our class _____ ( be ) going hiking next week.

15. I think he needs _____ ( have ) more time to exercise.