Read the following passage and mark the letter A, B, C, or D to indicate the correct word or phrase that best fits each of the numbered blanks When you are in Singapore, you can go about (1) ______ taxi, by bus, or by underground. I myself prefer the underground but it is fast, easy and cheap. There are but buses and taxis in Singapore and one cannot drive along the road (2)______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 (3) ______ the bus you want. You can take a taxi, but it is more 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 (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. quick B. quickly C. quicker D. quickest 3. A. find B. to find C. finding D. found 4. A. who B. what C. when D. how