21. (A) She likes something more challenging.(B) She likes to be nearer to her parents. (C) She wants to have a betterpaid job.(D) She wants to be with her husband.

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.