问题补充：
The faster way to travel in a city is by subway. In many big cities, there1usually more than one subway lines. How to travel by 2 ? Here is something to know 3 you travel by subway. First, you should choose the right line. If you don , you will have to get off and take 4one. Second, you need some coins (硬币) to buy your 5 . In6of the ticket machines, only coins are used. You can change (换)7 at the ticket office. If you have a prepaid (预付款) card, you can just go ahead. After you buy the ticket, you should 8 the train behind a yellow line. You 9 stand too close to the yellow line. Its 10
【小题1】A．haveB．hasC．areD．is【小题2】A．subwayB．busC．trainD．bike【小题3】A．afterB．beforeC．untilD．as soon as【小题4】A．the nextB．otherC．the otherD．another【小题5】A．foodB．bookC．ticketD．map【小题6】A．mostB．allC．eachD．few【小题7】A．money .B．coinsC．subwayD．ticket【小题8】A．look forB．get offC．get onD．wait for【小题9】A．mustB．mustn C．have toD．don have to【小题10】A．dangerousB．safeC．funD．OKC
答案：
(答案→)C
解析：本文告诉我们乘坐地铁的生活常识。
【小题1】此题考查there be 结构，因其主语是lines是复数故选C.
【小题2】by+交通工具的单数，表示乘坐某种交通工具。
【小题3】根据下文，可知下面介绍的是乘坐地铁应注意的问题。
【小题4】another表示三者或三者以上的另一个。
【小题5】用硬币买车票。
【小题6】在地铁站，售票机大多数是使用硬币的。
【小题7】在服务窗口可以兑换硬币。
【小题8】等候地铁要站在黄线意外。
【小题9】mustn’t表示禁止做某事。
【小题10】靠黄线太近，非常危险。
