13.He succeeded in reaching the summit at his first _________.(尝试)

12.They restarted the Long March, _______ at experiencing the hardship that

　the Red Army had suffered.(主旨)

11.When I arrived at the __________, the plane had taken off.(机场)

10.Please write your telephone number and _________ here.(地址)

9.You should pay more __________ to your pronunciation.(注意)

8.On __________(平均), he has an income of 3,000 yuan per month.

7.If we do things ______ nature, we will be punished by it.(违背)

6.You are not ____________ to smoke here.(允许)

5.There are 60 students in class 12 Senior III _____________.(总共)

4.There are many honored guests ___________ today's conference.(参加)