The paper factory has caused a lot of serious air pollution in my hometown A. last year B. once a mo...
2022-10-02 04:55:04 186次 牛津译林版8下 Unit 1 Past and Present 复习练习 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
The paper factory has caused a lot of serious air pollution in my hometown
A. last year B. once a month
C. in five years D. over the past five years
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