单项选择题
Passage Two Questions 30 to 32 are based on the passage you have just heard.
A. Do exercises irregularly. B. Breathe slowly and smoothly. C. Change dally diet. D. Find out the problems.
A. There is no traffic jam at the AIM. B. A41 isn’t very busy. C. AIM has no problems. D. A404 is flowing freely.