单项选择题
A. It involved a few lunches. B. There were free lunches. C. There were three lunches. D. There are more than free lunches.
A. the growing number of smokers among young people B. the rising proportion of minorities in its population C. the increasing consumption of high-calorie foods D. the improving living standards of the poor people
A. She will be absent in the next class. B. She will help the professor hand out the course outline. C. She will copy the outline by herself. D. She will go to the office of the professor.