Unit7ProtecttheEarth习题2一、单项选择。1.---What_____wedotosaveenergy?---Weshouldnotdrivesomuch.A.keepB.shouldC.makesD.cans2.---Howshouldwesaveplasticbagsandbottles?---Weshouldmorepaperbagsandglassbottles.A.useB.usesC.canD.keeps3.Wewoodmaketableschairsandmanyotherthings.A.use;andB.uses;toC.use;toD.uses;for4.Wecuttoomanytreesbecausetreeshelpuskeeptheairclean.A.shouldB.shouldnotC.canD.keep5.Thereisnotmuchcoaloroilon,sowesaveenergy.A.earth;shouldB.Earth;shouldnotC.Earth;shouldD.earth;shouldnot
