We can never expect ________ bluer sky unless we create ________ less polluted

We can never expect ________ bluer sky unless we create ________ less polluted

题型:不详难度:来源:
We can never expect ________ bluer sky unless we create ________ less polluted world.(2009·安徽)
A.a;aB.a;theC.the;aD.the;the

答案
A
解析
两个空都是不可数名词表示泛指,所以都用不定冠词。句意:如果我们不创造一个环境污染更少的世界,我们就永远不能期望拥有一片更蓝的天空。
举一反三
It is generally accepted that ________ boy must learn to stand up and fight like ________ man.(2011·全国)
A.a;aB.a;theC.the;theD.a;/

题型:不详难度:| 查看答案
First impressions are the most lasting.After all, you never get ________ second chance to make ________ first impression.(2010·北京)
A.a;theB.the;theC.a;aD.the;a

题型:不详难度:| 查看答案
Being able to afford ________ drink would be ________ comfort in those tough times.(2012·山东)
A.the;theB.a;aC.a;/D./;a

题型:不详难度:| 查看答案
I don"t think the experiment is ________ failure.At least we have gained ________ experience for future.
A./;theB.a;theC.a;/D./;/

题型:不详难度:| 查看答案
Italy is ________ most attractive European country and how I wish I would go there for________ second time.
A.a;aB./;aC.the;theD.a;the

题型:不详难度:| 查看答案
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