单项选择题
A.They go to a regular school. B.They attend a special school. C.They are taught by their parents. D.They have a private tutor.
A.Most of them would be indifferent and keep on throwing garbage into the fiver. B.They would join the students in changing the situation. C.They would become more aware of the pollution problem. D.They would think twice before they went swimming or fishing in the fiver.
A.She’d like to have the windows open. B.She likes to have the air conditioner on. C.The air is heavily polluted. D.The windows are already open.