we couldn't arrive at the station before the train left _______ (没有）the driver's help

Mr.Smith's plane___.Let's wait for him here.A.hasn't arrived B.didn't arrive C.doesn't arriveD.couldn't arrive we couldn't arrive at the station before the train left _______ (没有）the driver's help we couldn't r__ enough money for a holiday We haven't been told if they ( )on time.If they ( ),I will tell you immediately.A.will arrive,will arrive B.arrive,arriveC.will arrive,arrive D.arrive,will arrive We couldn't a___ a new computer because we were very poor at that time. We couldn't have a picnic last Sunday.Because it was rainy同义句We couldn't have a picnic last Sunday ______ ______ _______ _______ lt rained so heavily that we couldn't have a piclt rained so heavily that we couldn't have a picnic.(同义句转换) We couldn't see through the Heart breaen we couldn't cry togehter we couldn't live without others 'help Oops..We couldn't detect a face in the photo.Plese try a different one. What we ( )get seems better than what we have .A can`t B could C can D couldn`t 英语翻译（没有足够的雨水）we couldn't have so good a harvest. we couldn't get a ride to the train station.翻译 It was too dangerous,so we couldn't more a stop___(far). They couldn't arrive because they were delayed by?A.heavy traffic B.heavy trafficsC.crowded trafffic.D.crowded traffics.选什么?为什么?根据语法规则是什么? We couldn't find them all.变同义句We couldn't find_____of_____. We ran to the trees,( ) we couldn't see any more monkeys. A.but B.for 请详解!