we were travelling cross the channel怎么翻译?为什么要用travelling.直接we were crossing the channel

My nephew ____ as our guide while we were travelling in London.A.played B.showed C.acted D.performed we were travelling at a s____of 80 miles and hour we were travelling cross the channel怎么翻译?为什么要用travelling.直接we were crossing the channel ( )We all enjoy _______a train.A.travelling by B.to travel C.travelling on we were travelling across the channel里的trave为什么加ing they spent as much time travelling as they____A.reading B.were reading C.did to read D.did reading travelling travelling travelling travelling we were travelling across the channel and jane put a piece of paper with her name and address on it into a bottle这里的it是什么意思啊? when we are travelling,we usually stay in h____. Unlucky,we were c(.) in the heavy rain yesterday. A were was B are was C we're is when we were arriving和 when were we arriving有什么区别?两个都对吗?一道单选 …he eagerly asked when________.A.had we arrived B.we had arrived C.were we arriving D.we were arriving 这里的 Channel we were travelling across the Channel and Jane put a piece of paper with her name and address on it into a bottle.Channel 在这里是隧道的意思吗 为什么首字母要大写呢 We have known each other___.A.since we were young B.after we were young C.when we are youngD.if we are young ( )【安全】is the most important while we are travelling.