11 Since ancient times people have found various ways to peserve meat.
A　eat　 B　cook
C　freeze　 D　keep
12 We packed up the things we had accumulated (積累) over the last, three years and left.
A　late B　recent
C　past D　final
13 The expedition reached the summit at 10:30 that morning.
A　bottom of the mountain　 B　foot of the mountain
C　top of the mountain D　starting point
14 There is always excitement at the Olympic Games when an athlete breaks a previous record of performance.
A　beats　 B　destroys
C　maintains D　defends
15 The president proposed that we should bring the meeting to a close.
A　stated　 B　said
C　suggested D　announced
參考答案：11. D　 12. C　 13. C　 14. A　 15. C