Choose the correct option A, B, C, or D for each gap to complete the following passage.

When you are in Hong Kong, you can go about by taxi, by tram, by bus, or (30) ________ underground. I myself prefer the underground because it is fast, easy and cheap. There are (31) _________ trams and buses in Hong Kong, and one cannot drive along the road quickly and without many stops. The underground is therefore usually quicker (32) _______ taxis or buses. If you do not know Hong Kong very well, it is very difficult (33) _______ the bus you want. You can take a taxi, but it is (34) _______ 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 how to get to them, so that it is easy to find your way.

Question 30. A. in                   B. by                     C. on                    D. with

Question 31. A. some    B. a lot                  C. many               D. few

Question 32. A. as                   B. than                  C. so                     D. like

Question 33. A. finding B. found               C. to find              D. to finding

Question 34. A. more    B. much                C. as                     D. too