试题 试卷
题型:单选题 题类:常考题 难易度:困难
山东省滨州市集团校2019-2020学年九年级上学期英语期中测试卷(含听力材料)
—Yes. I hope to plant trees. trees, air pollution.
— It's very simple. ____________ you work, ____________ grades you'll get.
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