Passage One
26, C. He specialized in interpersonal relationship.
27. D. Black freshman with high standardized scores
28, C. They broke up more often than same-race roommates
29, C. The racial attitudes improved.
Passage Two
30, A. It will help solve the global food crisis.
31, D. It is still far from being sufficient.
32, D. They are not as natural as we believed.
Passage Three
33, A. He was wrongly imprisoned
34, A. The two victims’ identification
35, B. Many factors influence the accuracy of witness testimony.