题目
阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。-|||-In 1863 the first underground passeng railway in the world opened in London.It ran for just under seven-|||-kilometers and allowed people to avoid terrible 1 (crowd) on the roads above as they travelled to and 2 -|||-work.It took three years to complete and was built using an interesting method.This included digging up the road,-|||- 3 (lay) the track and then building a strong roof over 4 top.When all those had been done, the road-|||-surface was replaced.-|||-Steam engines 5 (use)to pull the carriages and it must have been 6 (fair) unpleasant for the-|||-passengers, with all the smoke and noise. However, the railway quickly proved to be a great success and within six-|||-months, more than 25,000 people were using 7 every day.-|||-Later, engineers 8 (manage) to construct railways in a system of deep tunnels(隧道),which became-|||-known as the Tube.This development was only possible with the 9 (introduce) of electric-powered-|||-engines and lifts.The Central London Railway was one of the most 10 (success) of these new lines,-|||-and was opened in 1900.It had white-painted tunnels and bright red carriages, and proved extremely 外教朗读-|||-popular with the public.-|||-1. __ 2. __ 3. __ 4. __ 5. __-|||-6. __ 7. __ 8. __ 9. __ 10. __

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