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课时提升作业 Ⅰ. 单项填空 1. on the portrait, my mother was deep in thought. A. Fixed her eyes B. Her eyes are fixed C. Her eyes fixing D. Her eyes fixed 2. (2017·杭州模拟)We’ve got a general idea of what we want, but nothing at the moment. A. concrete B. ordinary C. standard D. abstract 3. the brakes before you drive down a hill. A. Look out B. Work out C. Carry out D. Try out 4. Today the public is much concerned about the way . A. nature is being ruined B. which nature is ruined C. on which to ruin nature D. of nature to be ruined 5. Around the area of Aswan there are a lot of important old temples, which about 1250 B. C. . A. date from B. begin with C. start with D. open from 6. According to a recent survey, too much pressure and long working hours are many people’s health. A. hurting B. injuring C. ruining D. deserting 7. (2017·天津模拟)He climbed silently of seizing the thief . A. on purpose; by surprise | 
