25.
(A) Buy tickets for the woman again.
(B) Take a trip with the woman again.
(C) Interview the woman again.

21. (A) Buy tickets to the zoo.(B) Read books in a library.(C) Take a class online.

22. (A) His family history.(B) His brother.(C) His job.

23. (A) He went to pick up his friend at the airport.(B) He went to a party and met his friends.(C) He went to a park to walk his dog.

24. (A) Her boss.(B) Her father.(C) Her professor.

第四部分：短文聽解26. (A)(B)(C)

27. (A)(B)(C)

28. (A)(B)(C)

29.  (A) (B) (C)

30. (A)(B)(C)

1. A water-insoluble substance X has been shown to ameliorate the symptoms of Parkinson's disease in human, but its pharmacological mechanism has not yet clear. To investigate its mechanism in animals, the experimental group(s) should include animals that receive injection of (A) only substance X group (B) substance X and physiological saline groups (C) substance X and distilled water groups (D) substance X and the solvent that used for dissolve substance X groups.