We can never expect bluer sky unless we create less polluted world.A. a; aB. a; theC. the

发布时间：2020-08-16 22:46:19

We can never expect      bluer sky unless we create     less polluted world.
A. a; a
B. a; the
C. the; a
D. the; the

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(答案→)A. a; a
B. a; the
C. the; a
D. the; the
解析：考查冠词辨析。你永远别指望一个更加蓝的天空除非我们创造一个更少污染的世界。两个均为泛指。
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