We should plant more trees to make the air_____.(clean)

We should plant more trees to make the air_____.(clean) We should plant more trees to make the air _____(clean). Jan We should plant more trees to make our city more b( ) 1.we should plant more trees to make our city _____.(green)为 we should plant more trees ,and..then the 句型转换 We should plant more trees to protect the ea why should we plant more trees? We plant more trees to make our earth more beautiful.to make We plant more trees to make our earth more beautiful． If we want to make our city() ,we must plant more trees.A.is We should plant more trees and _________ the wild animals li We should plant more trees to___ the soil___flowing away.人们应