单选题 I know this is the fight train. The ticket agent said it would be on ______.
【正确答案】 A
【答案解析】[解析] 本题考查基数词的用法。表示“第几……”,用序数词时,前面一定要加冠词;用基数词时,不用冠词,但语序与汉语相反。例如:lesson one→the first lesson。故选A。