13. They agreed to modify their policy.
A. clarify
B. define
C. change
D. develop
正确的答案是: C
14. Mary has blended the ingredients.
A. made
B. mixed
C. cooked
D. eaten
正确的答案是: B
15. The chairman proposed that we should stop the meeting
A. showed
B. suggested
C. agreed
D. believed
正确的答案是: B