Passage Three
Questions 32 to 35 are based on the passage you have just heard.

A．He was tired of the boring work.
B．He was not satisfied with the salary.
C．He found no chance of promotion.
D．He found no way to like his boss.

A．No findings made to cure the disease.
B．Pollution caused by the experiments.
C．Killing animals for the sake of experiments.
D．Accidents caused in the laboratories.