完形填空。OnaSaturdaymorning，IwentcampinginGreenNaturalParkw...
問題詳情：完形填空。OnaSaturdaymorning，IwentcampinginGreenNaturalParkwithsomefriends.Wewerehappybecauseitwasasunnyday.Allthewaythere，wesangsongsandmadejokes. 1 ，intheafternoon，whenwefinishedourpicnic(野餐...