询问太空信息的特殊疑问句 — 英语选择题

太空采访记录：目的地是火星；出发时间是周六上午；宇航员乘火箭前往。哪组问答询问的是他们前往太空的方式？A. Where do they go? — To Mars. B. When do they go? — On Saturday morning. C. How do they go into space? — By rocket. D. Who goes into space? — The astronauts.