English 9 - Test 509
Read the following passage, then choose the correct answer to question: The traffic light signal was invented by a railway signaling engineer. It was installed (1)_________The House of Parliament in 1868. It (2)_________like any railway signal of the time, and was operated by gas. (3)_________, it exploded and killed a policeman, and the accident (4)_________further development until cars became common. (5)_________traffic lights are an American invention. Red-green (6)_________were installed in Cleveland in 1914. Three-color signals, (7)_________by hand from a tower in the (8)_________of the street, were installed in New York in 1918. The (9)________lights of this type to (10)________in Britain were in London, on the junction between St Jamess street and Piccadilly in 1925.
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