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课时提升作业(四) Ⅰ. 单项填空 1. I have offered to paint the house a week’s accommodation. A. in exchange forB. with regard to C. by means of D. in place of 2. (2017·安庆模拟)According to a UN report, one third of the world population have no to clean drinking water and health care. A. meansB. approach C. channel D. access 3. (2017·天津模拟)Lucy cut down her daily spending in order to the financial storm. A. prevent B. survive C. keep D. stop 4. My mother opened the drawer to the knives and spoons. A. put away B. put up C. put on D. put together 5. (2017·忻州模拟)—Why do you look so worried? —My computer broke down and my essay unfinished since. A. had left B. has left C. has been left D. was left 6. (2017·赤峰模拟)This is the second time Nie Haisheng to be the astronaut who took the glorious task. A. has been chosen B. had been chosen C. was chosen D. chose 7. The maths examination was rather difficult. As a result, students failed it. | 
