Unit13 We’re trying to save the earth.Period1(课件+练习+音视频)

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21世纪教育网 –中小学教育资源及组卷应用平台
Unit13 We're trying to save the earth.
Section A Period1同步练习
单词填空。
1．Let's pick up the ________ (垃圾)and put it into the bin.21世纪教育网版权所有
2．Factories should burn less _________to reduce air pollution.2·1·c·n·j·y
3．The book I want is right at the ________ (底部)of the shelf.
4．Ma...