Fill in the blank with the words given in A, B, C, or D to complete the text (1.0 pt) When you are in Singapore, you can go about (1)_________ taxi, by bus, or by underground. I myself prefer the underground (2) it is fast, easy and cheap. There are many buses and taxis in Singapore and one cannot drive along the road quickly and without many stops, especially on Monday morning. The underground is therefore usually quicker than taxis or buses. If you do not know Singapore very well, it is difficult to find the bus you want. You can take a taxi, but it is (3)__________ expensive than the underground or a bus. On the underground, you find good maps that tells you the names of the stations and show you (4) to get to them, so that it is easy to find your way. 1. A. by B. in C. at D. on 2. A. but B. because C. when D. so 3. A. less B. much C. most D. more 4. A. who B. what C. how D. when