We can never expect ______ bluer sky unless we stop ______ industrial waste going into _____ atmosph...
2022-12-22 13:15:26 201次 2014届江苏省高二上学期中考试英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
We can never expect ______ bluer sky unless we stop
______ industrial waste going into _____ atmosphere.
A．a; the; the B．the; the; the C．a; /; the D．the; /; /
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