22. (A) Right away. (B) In two months. (C) Early next month.(D) In a couple of days. Questions 23 to 25 are based on the conversation you have just heard.

26. Questions 26 to 29 are based on the passage you have just heard. (A) She taught chemistry and microbiology courses in a college. (B) She gave lectures on how to become a public speaker. (C) She helped families move away from industrial polluters. (D) She engaged in field research on environmental pollution.