In some cities the traffic police use compute...

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In some cities the traffic police use computers to keep the traffic________smoothly.

A．being run　 B．run　 C．to run　 D．running

高三英语单项填空中等难度题

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In some cities the traffic police use computers to keep the traffic________smoothly.
A．being run　 B．run　 C．to run　 D．running

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They use computers to keep the traffic　　　　 smoothly.　 k
A. being run　　　　　　　 B. run
C. to run　　　　　　　　　　 D. running

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They use computers to keep the traffic _____ smoothly.
A. being run B. run C. to run D. running

高三英语单项填空简单题查看答案及解析
They use computers to keep the traffic _________ smoothly.
A. being run　　　 B. run
C. to run　　　　　 D. running

高三英语单项填空中等难度题查看答案及解析
They use computers to keep the traffic ________ smoothly.
A. being run B. run C. to run D. running

高三英语单项填空中等难度题查看答案及解析
They use computers to keep the traffic _________ smoothly.
A.being run B.run C.to run D.running

高三英语单项填空中等难度题查看答案及解析
They use computers to keep the traffic _________ smoothly.
A. being run　　　　 B. run　　　　　 C. to run　　　　　 D. running

高三英语单项填空中等难度题查看答案及解析
In many cities of China, if an ambulance is＿＿in a traffic jam, police will respond to the emergency.
A. held up 　　 B. held back 　
C. held down 　D. held out

高三英语单项填空中等难度题查看答案及解析
In many cities of China, if an ambulance is_______ in a traffic jam, police will respond to the emergency.
A． held up　　　　　　 B． held back
C． held down　　　　　 D． held out

高三英语单项填空中等难度题查看答案及解析
In many cities of China, if an ambulance is_______ in a traffic jam, police will respond to the emergency.
A. held up　　　 B. held back
C. held down　　 D. held out

高三英语单项填空中等难度题查看答案及解析