9. Everyone in the class participated in the farewell party.
A) contributed to
B) took pleasure in
C) took part in
D) enjoyed
10. Since ancient times people have found various ways to preserve meat.
A) carve
B) cook
C) freeze
D) keep
11. To understand what we are going to talk about today， you have to rely on what you have read previously.
A) beforehand
B) carefully
C) before
D) in advance
12. At the policemans signal， the vehicle pulled up.
A) stopped
B) slowed down
C) sped up
D) turned up
13. Not everyone can perceive the gradual change in the writers style.
A) appreciate
B) notice
C) describe
D) discover
14. It was said that after his fathers death， he possessed nearly half of his fathers wealth.
A) wasted
B) owned
C) purchased
D) sold
15. They all agreed that the changes that have taken place are substantial.
A) significant
B) superficial
C) inadequate
D) inevitable
参考答案：BDABD ADCCD CABBA