16.　 It is generally accepted that the Chinese c_______________ is one of the oldest in the world.

15.　 Chinese economic and trade_______________ (展览会) have promoted the exchange of the advanced techniques with foreign countries.

14.　 I must help my brother and sister because they're my own f_______________ and blood.

13.　 The specialists and s_______________ present at the symposium come from all corners of the country.

12.　 The boys _______________(打算、尝试)to leave for camping but were stopped by their parents.

11.　 N_______________, advertisements can be found everywhere in any big city.

10.　 The s_______________ of the trees grew longer as the afternoon went on.

9.　　　 It took many hours to _______________(使相信)the court of his guilt.

8.　　　 She makes a r_______________of keeping her house clean and tidy.

她认为保持房子整洁是她份内的事。

7.　　　 You must try to _______________(集中)your mind on work and study.