Passage Two
Questions 30 to 32 are based on the passage you have just beard.

单项选择题A. Ask Dr. Smith to call the library.B. Ask Dr. Smith to alter his decision.C. Get Dr. Smith’s written permission.D. Get the book directly from Dr. Smith.

A. Ask Dr. Smith to call the library.
B. Ask Dr. Smith to alter his decision.
C. Get Dr. Smith’s written permission.
D. Get the book directly from Dr. Smith.

单项选择题John T. Gourville suggested that consumers are more likely to notice it if （）.

A. the prices of the goods change
B. the quality of the products improves
C. the packages take a different look
D. the weights of foods turn lighter