Write the correct degree of comparisons of the adjectives.
1) I think travelling by plane is ___________ . (fast)
2) Its __________ to travel by ship than by train. (expensive)
3) Metro is ___________ means of transport in a city. (quick)
4) For me its _________ to travel by car than by bus. (interesting)
5) The _________ way to get from my house to school is to go on foot. (good)