Allan is visiting Beijing.He needs a m___of the citoy.It sho

Allan is visiting Beijing.He needs a m___of the citoy.It shows how to travel around the city.Here are the ways of t____around By Bus.Buses go to d____places in the city.They are cheap,but sometimes crowed.There are a____double-decker buses.They are comfortable.You can go sight-seeing from the top deck.Here are two ways:One from the east to the west;another round the city like a ring road.The undergroung trains are fast,b____very crowded in the rush hours.BYTAXI Taxis arefast,but they rather e_____.