4. 孩子们在惊恐中跑走了。
The children .
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5. (2014 贵州齡西南中考) He didn’t go to school yesterday he was ill.
A. because B. because of
C. if D. so
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3.May I speak to the headmaster?
—He a meeting now. Can I take a message?
A. is having B. had
C. has D. will have
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Even during the ancient days,traffic in big cities was often heavy. Police officers had to stand at busy crossings the whole day. They often got 21 after they worked all day long. So they 22 a small lantern (提灯) with red and green lights. Red meant “ 23 ” and green meant “be careful” .The lantern was 24 by a lever (控制杆) below so that the right light faced traffic. 25 ，this lantern was often crispy because of much gas in the light bulb.
As cars were 26 ,the situation got even worse. An American policeman,William Potts,decided to do 27 to solve the problem.
One day,while he was walking along a railway,Potts 28 the railroad signals. Then he got an idea—why not use them on 29 ? So Potts used red,yellow,and green railroad lights to make the 30 fourway traffic lights in the world. It was used in 1920 on a corner in his city. In the year,fifteen of the new lights were used across his state.
21. A. tired B. happy C. busy D. sleepy
22. A. bought B. produced C. carried D. created
23. A. remain B. stop C. rise D. go
24. A. knocked B. divided C. threw D. operated
25. A. However B. Besides C. Instead D. Even
26. A. found B. invented C. discovered D. seen
27 .A. everything B. anything
C. something D. nothing
28. A. broke B. obeyed C. guided D. noticed
29. A. buildings B. streets C. cars D. courts
30. A. first B. other C. next D. last
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