Methods of transportation I prefer metro as my first choice Provided I traveled from home to some other place, I would undoubtedly take metro as my first choice Compared with other mass transportations, metro has its own merits which could not be surpassed by others There are numerous reasons why I emphasized on my idea However, I herein explain some pertinent ones What I matter most is its high efficiency As we see, increasingly autos are running on the main roads of the cities That doings cause more frequent traffic jams Owing to that, if you want to cover a relatively long distance in a city, it is an absolutely boring thing For instance, in Peking, during the rush hours of morning and afternoon, it is unlikely for you to cover ten kilometers in an hour by a bus However, taking a metro would successfully solve the problem Benefiting from no traffic jams, a metro run as an express train which would send you home in a short time Secondly, metro provides us a comparatively comfortable environment In the underground, which functions as an excellent air-conditioner, people would feel cool in summer and warm in winter In addition to that, there are a number of bookstores and grocery shops, where we can readily shopping after our whole day`s work Last but not least, we should not gainsay that metro also has the superiority on price In Peking, the single price-Three Yuan for all distances makes the metro acceptable for mass Personally, I consider that the price is quite reasonable for many blue-collar workers and our college students Due to the mentioned reasons, which correlate with each other to generate a complete whole that would be superior to any each of these, I can safely conclude that metro should be the first choice for mass transportation