Unit13 We’re trying to save the earth.Period4(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 B Period4同步练习
单词填空。
1.To reduce the CO2 in the air，people should stop _______(ride)in cars.
2．_________ (recycle)paper is a really easy thing for everyone.21教育网
3.They watched TV instead of _____________(stay) at home.21cnjy.com...