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2009年全国各地高考英语试卷单选题汇总
21. We can never expect bluer sky unless we create less polluted world.
A. a; a B. a; the
C. the; a D. the; the
22. - I wonder how much you charge for your services.
-- The first two are free the third costs $30.
21. We can never expect bluer sky unless we create less polluted world.
A. a; a B. a; the
C. the; a D. the; the
22. - I wonder how much you charge for your services.
-- The first two are free the third costs $30.
