Read the text and decide which answer best fits each space.
When you are in Hong Kong, you can go about by taxi, by tram, by bus, or (1) underground. I myself prefer the underground (2) it is fast, easy and cheap. There are (3) trams and buses in Hong Kong, and one cannot drive along the road (4) and without many stops. The underground is therefore usually quicker (5) taxis or buses. If you do not know Hong Kong very well, it is very difficult (6) the bus you want. You can take a taxi, but it is (7) expensive than the underground or a bus. On the underground you find good maps that tell you the names of the stations and show you (8) to get to them, so that it is easy to find your way.