科目:初中英语 来源: 题型:阅读表达
| Name and Material of The Traffic Light | Being Invented Date and Place | Inventor |
| The first traffic lights looked like railway signals with red and green gas lamps for night use. | on December 10,1868, in London | J.P.Knight |
| The modern electric traffic lights were red-green electric traffic lights. | in 1912, in Salt Lake City | policeman called Lester Wire |
| A traffic signal system had two colors,red and green,and a buzzer(报警器). | on August 5,1914, an American Traffic Signal Company | James Hoge |
| The first four-way,three-color traffic light | In 9120,in Detroit, Michigan | a police officer called William Potts |
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科目:初中英语 来源: 题型:句型转换
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科目:初中英语 来源: 题型:解答题
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科目:初中英语 来源: 题型:选择题
| A. | experience; experience | B. | experiences; experiences | ||
| C. | experiences; experience | D. | experience; experiences |
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科目:初中英语 来源: 题型:选择题
| A. | be | B. | was | C. | has | D. | have |
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科目:初中英语 来源: 题型:选择题
| A. | study | B. | were studying | C. | will study | D. | have studied |
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