15. A) To investigate the cause of AIDS.
B) To raise money for AIDS patients.
C) To rally support for AIDS victims in Africa.
D) To draw attention to the spread of AIDS in Asia.
答案：
D) To draw attention to the spread of AIDS in Asia.
原文：
15. W: So, you’re just back from a trip to India. What were you doing there?
M: The trip was intended to bring to the world’s attention the fact that AIDS is not just an African disease; it’s also endangering other countries, notably, India and Thailand.
Q: What was the purpose of the man’s trip to India?