Task 5 Directions: The following is a passage. After reading the passage you should give brief answers to the 5 questions (No.56 through No.60) following them. The Singapore underground train system, known as the MRT, offers a speedy and easy way to get about our city. You'll need small change to buy an individual ticket. Alternatively, buy a special ticket designed with the tourist in mind. Costing $6 ,it offers $5.50 worth of rides the extra 50 cents is for keeping the ticket as a souvenir (纪念品). Tourist tickets feature one of three designs: the Chinese Gardens, the Victoria Memorial Hall or a night skyline of Singapore. You gain entry to the trains by inserting your ticket into the barrier machine (检票闸机). Wait for the ticket to reappear and put it away safely: you'll need it again. After your trip, you insert your ticket into the barrier in order to leave. Please note that each ticket is time coded on entry, and you are advised not to spend more than half an hour in addition to travel time, because tickets can expire (失效). Moving stairs that take you to the platform. and train destinations are marked clearly. Trains run frequently. Do remember, eating and drinking are forbidden in MRT stations and trains. What purpose does the MRT serve? To provide a(n) ________ way to get about the city.