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Ⅰ. 单项选择 1. I have been told that the new law will come into ______ on January 1st next year. A. effect B. use C. service D. existence 2. ____ two exams to worry about, I have to work really hard this weekend. A. With B. Besides C. As for D. Because of 3. A good story does not necessarily have to have a happy ending, but the reader must not be left ______. A. unsatisfied B. unsatisfying C. to be unsatisfying D. being unsatisfied 4. We were in ______ when we left that we forgot the airline tickets. A. a rush so anxious B. a such anxious rush C. so an anxious rush D. such an anxious rush 5. Scientists are convinced ______ the positive effect of laughter ______ physical and mental health. A. of; at B. by; in C. of; on D. on; at 6. —If you like I can do some shopping for you. ?That’s a very kind ______. A. offer B. service C. point D. suggestion 7. I would like to arrive 20 minutes early ______ I can have time for a cup of tea. | 
