试题 试卷
题型:单选题 题类:常考题 难易度:普通
重庆市九龙坡区十校联考2020届九年级上学期英语期中考试试卷(含听力材料)
— I think so. trees, air pollution.
— It's very simple. ____________ you work, ____________ grades you'll get.
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