6 Read the examples. Then complete the sentences with these words. ber ork. Both trains and planes are expensive. Neither Tony nor Susan likes travelling by train. You can go either by train or bus. me 7 at op. 1 planes ... hovercrafts are very fast, but they're expensive. 2 ... trains ... buses cost a lot. They're quite economical. 3 We can travel ... by car ... by car ... by coach. You decide. 4 ... motorbikes ... scooters are very noisy. 5 She can easily ride ... a bike ... a motorbike.