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We can’t expect _____blue sky unless we create ____less polluted world.


  1. A.
    a;a
  2. B.
    a;the
  3. C.
    the; a
  4. D.
    the;the
A
本题考查冠词,冠词的考查集中在the表示特指;a/an表示泛指。另外还要注意一些冠词的固定词组。Sky本来是不可数名词,但前面有形容词修饰的时候,可以使用a/an修饰。第二空用a表示泛指一个污染不太严重的世界。句意:如果我们不创造出一个污染不太严重的世界,我们就不能期待有一个湛蓝的太空。故A正确。
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