we can have ____bluer sky if we create____less polluted world.A a a Ba the C the a Dthe the

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we can have ____bluer sky if we create____less polluted world.A a a Ba the C the a Dthe the
we can have ____bluer sky if we create____less polluted world.A a a Ba the C the a Dthe the

we can have ____bluer sky if we create____less polluted world.A a a Ba the C the a Dthe the
A
如果我们创造出一个污染更少的世界,我们就能拥有一片更蓝的天空.

we can have __a__bluer sky if we create__a__less polluted world.
如果我们创造一个更少污染的世界,我们就能有一片更蓝的天空。
两个都是泛指,都填a,所以只有A是正确的

选A,不解释