They use computers to keep the traffic _______ smoothly. A．being runB．runC．to ru
题型：不详难度：来源：
They use computers to keep the traffic _______ smoothly. | A．being run | B．run | C．to run | D．running |
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答案
| D |
解析
| 考查非谓语动词。句意：他们用电脑保持交通运行流畅。现在分词作补足语表示正在进行的伴随性动作，和被修饰词是主谓关系。故选D。 |
举一反三
| My friend showed me round the town, ______ was very kind of him. |
| I can’t leave. She told me that I ______ stay here until she comes back. |
| I’m turning the shop_____to my son when I retire. |
–English is becoming so important.
–It’s true. Many university classes are taught in English _____ the native language is not English. | A． as if | B． what if | | C． as long as | D． even though |
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Although ______ for many years, the two old sisters recognized each other at once.| A．having been separated | B．being separated | | C．having separated | D．had been separated |
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