—How about the pollution in the countryside? —Luckily, it's not as serious as _______ in the big cit...
2023-02-12 05:04:16 48次 2015届江苏无锡南菁中学八年级上学期期中考试英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
—How about the pollution in the countryside?
—Luckily, it's not as serious as
_______ in the big cities.
A.
that B.
it
C. one D. those
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