The world's first underground railway
London Underground was1 in 1985, but2history dates back to 1863 3 the 4first underground railway opened in London. Today, London Underground is5Major business 6three million passenger journeys made a7,serving over 408 km ( 253 miles ) 8railway.
In 2004-2005, London Underground trains ran a 9of 69.4 10kilometers in passenger service.
（1）
A .
from
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formed
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（3）
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what
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A .
world
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（9）
A .
sum
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group
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total
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team
（10）
A .
millions
B .
thousand
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million
D .
Thousands
