We can never expect ________bluer sky unless we create _____less polluted world
A．a(chǎn);aB．a(chǎn) ;theC． the ;aD．the; the
A

試題分析：考查冠詞：句意：如果我們不創(chuàng)造一個(gè)沒有什么污染的世界，我們永遠(yuǎn)不能期待更藍(lán)的天空。sky和world原本是獨(dú)一無二的,但這里前面都有了形容詞修飾,表示會(huì)出現(xiàn)一個(gè)什么樣的sky和world,這里就屬于泛反指了.，選A。
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