请教语法知识while crossing the mountain area,all the men carried g

请教语法知识while crossing the mountain area,all the men carried g While crossing the mountain area,all the men carried guns le ---(be) more careful while crossing the road carried the 英文专四语法题~52.All the President’s Men __B__one of the important They carried on with the while I was away. 英语翻译we live in the mountain area,Denver area just on the eas I saw him while he was crossing the street 与 He was crossing the news is carried out all over the world there will be thunder shower in the()是mountain area 还是area o while crossing the street,you should be careful句型转换：while __ Two men took the parcel off the plane and carried it into th