1) I know that there are
passenger trains, goods trains, and mail trains.
2) I think that long
distance trains are the most convenient railway vehicles for travelling over long
distances.
3) As a rule, four
passengers can travel in a sleeping compartment. There are also 2-berth
compartments.
4) While travelling by rail,
passengers can have their meals in the dining car. Some passengers prefer
having meals in their compartments.
5) Passengers can enjoy the
passing scenery from a moving train.