内容需包括以下方面：1. 哪一种是你最喜欢的交通方式2. 阐述你的理由3. 做出结论
【正确答案】：Which kind of public transportation do I prefer? Well, let me tell you something about it. As far as I am concerned, I like to take train best.
There are three reasons for my choice. Firstly, taking train is the cheapest way for traveling, which costs much less than using airplane and private cars. Secondly, taking train is the safest way for traveling, which causes much less traffic accidents than any other means of transportation. Thirdly, taking train is the most convenient way for traveling, which saves us a lot of troubles of parking or going to the airport, as you can go to the railway station more easily. But it takes the longest time for traveling, sometimes it is very difficult for you to get the ticket.
That’s why I prefer to take train.
