A：I lost my ID card.
我把身份证弄丢了。
B：Why were you so careless?
你怎么那么不小心？
A：I left my bag on the bus.
我把包忘在公交车上了。
B：Which bus did you take?
你乘坐哪路车？
A：Bus No.5.
5路。
B：You can call the Public Transport Company to see whether they have any information about it.
你可以给公交公司打电话问问他们是否有什么信息。
