Choose the best word from the brackets.
1)Trains are (fast,faster,the fastest) than buses.
2)Fast trains are (more,the most) expensive than slow trains.
3)Planes are (guick,guicker,the guickest) means of transport.
4)Going by car is (more, the most) comfortable than going by bus.
5)Metro is the (good,better,the best) way of travelling in a big city.