Question V: Fill in each numbered blank with one suitable preposition.
Traveling (1)…in.…the London underground (the tube) presents few difficulties(2)……visitors because(3)……the clear color-coded maps. It is always useful to have plenty (4)……spare change with you because there are often long queues (5) …..the large stations if you have enough change you can buy your tickets (6)……a machine. You will find signs which list the stations (7) ……correct fares near the machines. You should keep the ticket because it is checked (8)…..the destination.