Many trees ________ along the streets every year. So the air is very fresh now. A. plant B. are plan...
2022-10-05 13:04:55 61次 新人教版九年级第五单元精选练习题 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
Many trees ________ along the streets every year. So the air is very fresh now.
A. plant B. are planted C. planted D. were planted
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