旅行交通方式词汇 — 英语词汇题
题目
根据中文提示完成句子，每空一词。
1. We went to Qingdao by s______. It runs fast under the ground.（地铁）
2. My uncle plans to cross the river by f______ because it can carry many people on water.（渡轮）
3. They took a c______ to travel to Beijing. It is a long bus with comfortable seats.（长途汽车）