【文章內(nèi)容簡介】
e with proper words or phrases from the article on pages 5051. Change the form where necessary. The London underground system has the (1) __________ of being the oldest and most plex underground system in the world. Before 1850, train services to London had already been (2) __________, but people couldn’t build railways into the city because doing that would cause great (3) __________ to many historic buildings. So many buses were needed to (4) __________ people to the city centre, which, however, often (5) __________ traffic. This problem led to the development of the underground system. In 1854, Metropolitan Railway Company was allowed to build an underground railway and the first tunnels were opened in 1863. In 1868, the next (6) __________ of the underground system was opened by another pany called the Metropolitan District Railway. In 1884, these two panies (7) __________ and provided the underground service in the middle of the city. With the development of the (8) __________ ways of digging tunnels, the first railway tunnel under the River Thames was dug in 1884, and over the next 25 years, six (9) __________ deep underground lines were made. But because they were (10) __________ owned and far away from each other, traveling on these lines was (11) __________. Having seen the situation, Charles Yerkes, tried to improve the system. He bought many of the different lines and setting up the Underground Group. In 1933, a public (12) __________ called the London Passenger Transport Board was created, which eventually became London Transport. From 1918 to 1938, the system (13) __________ a lot. During World War II, the underground system had some (14) __________ uses