题目内容
---We can have ______ bluer sky if we create less polluted world.
---Yes, everyone should do something.
A. a; a B. a; the C. the; a D. the; the
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活力课时同步练习册系列答案题目内容
---We can have ______ bluer sky if we create less polluted world.
---Yes, everyone should do something.
A. a; a B. a; the C. the; a D. the; the
活力课时同步练习册系列答案