单项选择题A. The bike enthusiasts want to change the city’s culture.B. The bike enthusiasts want to change people’s health.C. The bike enthusiasts want to change citizen’s living habits.D. The bike enthusiasts want to change the city’s car congestion transportation.
单项选择题A. PE should not be an optional course. B. The health of the society is not perfect.C. The students take their long-term interests seriously.D. PE should be a voluntary course.