21. You have to ______(答应) me you won’t do that again.
20. Many great ____ (工程) are being built for the 29th Olympic in Beijing.
19. It is __________(传统) for Chinese to make jiaozi on New Year’s Eve.
18. Are you familiar with the ____ (公司) run by the foreigner?
17. The country’s _______ (自然) resources includes forests, cool and oil.
16. My parents hope this success will _______(激励)me to greater efforts.
15. It is the guide’s duty to _____(陪伴) visitors around the landscape.
14. If people want to live long, they need healthy food, as wellas clean and ______(新鲜) air.
13. The professor was always careful and _____(严谨) in his work.
12. There are many different festivals to _____(庆祝).