完形填空TreePlantingDaywasstartedintheyear1979.Everyyear 1...
问题详情：完形填空TreePlantingDaywasstartedintheyear1979.Everyyear 1 March12th,officeworkers,soldiers,workers,schoolchildrenandoldpeoplegoouttoplanttrees.Lastweek,Class3wenttoplantsometreeonTreePl...