参考答案：

PartⅠ Listening Comprehension

1. B) They knew none of the other guests at the party
2. A) To the dentist's
3. D) Dr. Andrews used to keep the patients waiting
4. A) Tom is usually talkative
5. C) To get the seminar schedule for the woman
6. B) The woman has to get the textbooks in other ways
7. A) Give a speech
8. D) Jessie always says what she thinks
9. A) Helen is quiet
10. C) Jimmy's words are often not reliable

11. A) It has done more hamp3 than good in the southern USA
12. B) They will soon be overgrown with kudzu
13. D) The climate there is unfavorable to its growth
14. C) An association of teachers and scholars
15. B) Its largest expansion took place during that period
16. C) Government funding
17. B) He started the organization Heifer International
18. C) To help starving families to become self-supporting
19. D) They should help other families the way they have been helped
20. A) It has helped relieve hunger in some developing countries