To plant trees,we should d________some holes first.
We should plant more trees to make the air_____.(clean)
why should we plant more trees?
We should plant more trees to make the air _____(clean). Jan
句型转换 We should plant more trees to protect the ea
1.we should plant more trees to make our city _____.(green)为
We should plant more trees to make our city more b( )
we should plant more trees ,and..then the
When should we plant the trees They (〉in spring.
we plant trees every
We should plant more trees and flowers around us . We should
we began to plant trees at nine 改为否定句
why don't we go to plant trees this weekend