Réponse :
55)
1. With your Oyster Card, you can touch in and touch out.
2. You can carry any money. It's very convenient.
3. Should I take the tube to go to St Pancras?
4. No, you don't. You can't walk there.
5. How long does it take? I won't be late!
56)
1. Can you show me the way to the train station?
2. Take the subway . It's faster.
3. Which line should I take? Must take?
4. Take the Circle Line to the west . It is useless to change.
5. Where do I go for buying a ticket?
You're welcome!