一、单项选择，每题1分，请将答案填写在答题卡上
1. You don’t have to take notes ________ I tell you to do so.
A. if B. when C. because D. unless
2. ______, the boy won the prize.
A. In surprise B. To our surprise C. Be surprised D. Be surprising
3. Li Ming is in poor health. He should pay more attention _________ exercise.
A. to take B. to taking C. for taking D. in taking
4. You should keep working hard ____ you have passed the exam.
A. since B. because C. so D. even though
5. ------ Do you know where Li Ming is working _____? ------ Maybe in Guangzhou, I think.
A. at first B. at least C. at last D. at present
