Although they plant trees in this area every year,the top of some hills are still___.Although they plant trees in this area every year,the top of some hills are still___.A.blankB.hollowC.vacantD.bare请陈述理由

Although they plant trees in this area every year,the top of some hills are still___.Although they plant trees in this area every year,the top of some hills are still___.A.blankB.hollowC.vacantD.bare请陈述理由 18.Although they plant trees in this area every year,the tops of some hills are still （ )18.Although they plant trees in this area every year,the tops of some hills are still （ ) A.blankB.hollowC.vacantD.bare ___ they plant trees in this area every year,the tops of some hills are still bare.A.Although B.Unless C.Since D.Once although they plant trees in this area every year,the tops of some hills are still__.A.blank.B.vacant C.bare They------(plant) some trees last year. They u什么 plant 什么 in March. plant plant 英语填空,填in,on,at,/1.They plant trees________12th March every year.2.They plant trees________every March.3.They plant trees________the morning of 12th March.4.They plant trees________Trees Plant Day.5.They water flowers and trees_________the m although they are going to plant trees on 2 years,中的plant 还有为什么等于grow they ary going to plant tress next spring.对plant trees提问,谢 they not only plant trees but also plant grasses on holiday .的同义句.英语. when do peopie usually plant trees?they usually plant trees in（ ）. They had us ()more treesA.plant B.plantingC.plantedD.to plant they went to plant trees last week.(变成一般疑问句) they went to plant trees last sunday.英语一般疑问句 They plant some trees last weekend改正错