一、單项选择
　　1. your books away and I’ll clean the room.
　　A. To take B. Take
　　C. Taking D. Took
　　2. eat too much， or you’ll become much fatter.
　　A. Don’t B. Don’t be
　　C. Not to D. Be not
　　3. ______more careful， or you’ll make mistakes.
　　A. Do B. Be
　　C. Is D. Are
　　4. —Remember to close the windows before you leave the office.
　　 — .
　　A. OK， I will
　　B. No， I won’t
　　C. I know it
　　D. That’s a good idea
　　5. —I’m leaving now.
　　 — you turn off the lights.
　　A. To make sure B. Make sure
　　C. Making sure D. Made sure
　　二、将下列句子改写成祈使句
　　1. We mustn’t take a dog to school now.
　　 .
　　2. We can water these young trees now.
　　 .
　　3. You must be careful when you walk across the street.
　　 .
　　4. His parents won’t let him go out at night.
　　 .
　　5. You’ll let me go out at night.
　　 .
　　6. If you work hard， you’ll be successful.
　　 .
　　Keys：
　　一、1-5： BABAB
　　二、1.Don’t take a dog to school now.
　　2.Water these young trees now.
　　3.Be careful when you walk across the
　　street.
　　4. Don’t let him go out at night.
　　5. Let me go out at night.
　　6.Work hard， you’ll be successful.