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A.HowB.How aC.WhenD.What

A.is; treesB.is; oilC.are; oilD.are; coal

A.so manyB.too manyC.too muchD.much too

A.energiesB.energysC.energyD.water

A.and; andB.or; andC.and; orD.or; or

A.toB.forC.inD.with

A.plasticB.plastic bottleC.plastic bagsD.plastic bottles

【1】A.binB.skinC.likeD.winter

【2】A.wasteB.saveC.sameD.around

【3】A.coolB.schoolC.cookD.afternoon

【4】A.signB.plasticC.binD.pick

【5】A.cuteB.usefulC.muchD.reuse

【6】A.energyB.InternetC.herD.clever

【1】A.elephantB.ice creamC.chocolate

【2】A.ChinaB.San FranciscoC.Canada

【3】A.readingB.singC.swimming

【4】A.stampB.postcardC.hobby

【5】A.the Spring FestivalB.ChristmasC.Thanksgiving

A.speakingB.speakC.speaks