do/makeasurveyonstudents’dailyhabits2
thenumberofthestudentsanumberofstudents3
turnoffthetapwhenbrushingteeth4
takeshowersforlessthantenminutes5
usebothsidesofthepaper6
recycleemptybottles7
takeone’sownbagstothesupermarket8
turnoffthelightswhenleavingaroom9
doalottohelpprotecttheenvironment10
becomeaseriousproblemallaroundtheworld11
plantmoretrees12
looknicerwithmoretreesaround13
reducedust14
helpkeeptheairclean15
helpkeepsoilinplaceduringstorms16
providehomeforanimals=provideanimalswithhome17
Airpollutionisharmfultoourhealth
=Airpollutiondoesharmtoourhealth
