河北省东光县第二中学九年级英语全册 Unit 13 We’re trying to save the earth Section B（1a-3b）课件.pptVIP

Unit13Wearetryingtosavetheearth.Whatcanwedotohelpsavetheplanet?Ranktheseitemsfromtheeasiest(1)tothemostdifficult(5)1a____stopridin...