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课时作业(二十六) [选修6 Unit 1 Art] [限时：35分钟] Ⅰ.单项填空 1．The driver can adjust the heating in winter and the air conditioning in summer to suit his own ________. A．leisure B．preference C．convenience D．selection 2．We can never expect ________ bluer sky unless we create ________ less polluted world. A．a; a B．a; the C．the; a D．the; the 3．—How about your journey to Mount Emei? —Everything was wonderful except that our car ________ twice on the way. A．slowed down B．broke down C．got down D．put down 4．China has got a good ________ for fighting against the flu with its careful and smooth organization. A．reputation B．influence C．impression D．knowledge 5．In those days, our ________ concern was to provide people who were stopped by the snowstorm with food and health care. A．normal B．constant C．permanent D．primary 6．The young man is being questioned by the police in relation to the ________ murder last night. | 
