1. --- Morning, class! Good luck to all of you in the exam!
--- Morning, teacher. ________.
A. The same to you. B. You, too. C. Thank you. D. I’m sorry I can’t.
2. --- I don’t think teenagers should drive cars.
--- _______. They aren’t serious enough.
A. I agree B. I don’t agree C. I think D. I don’t think
3. ---If there are ______ people driving , there will be ______ air pollution.
--- Yes, the air will be fresher.
A. less; less B. less; fewer C. fewer; fewer D. fewer; less
4. ---There are many volunteers ______ are helping the children in Sichuan.
--- And most of them are college students.
A. which B. when C. whose D. who
