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高三一轮英语课时作业 Ⅰ.单项填空 1．Ladies and gentlemen，I have the great privilege________introducing our speaker for tonight. A．in B．of C．about D．on 2．High interest rates________people from borrowing money. A．discourage B．protect C．save D．disturb 3．—The frequent terrible coal mine accidents killed more than 1,000 people in China last year. —________. A．Quite OK B．Certainly C．That’s the case D．I agree 4．Every day the boy，together with his classmates，________to go to the sports ground and________football，________themselves. A．are noticed；play；enjoying B．is noticed；plays；enjoying C．are noticed；plays；enjoys D．is noticed；play；enjoying 5．The importance of saving gas________be stressed too much.Automobiles use up some 70 billion gallons of gas a year. A．can’t B．mustn’t C．shouldn’t D．may not 6．No other salesmen could know how to increase sales，but soon Tim________a good solution. | 
