Don’t use words, expressions, or phrases_______ only to people with specific kno
题型：不详难度：来源：
Don’t use words, expressions, or phrases_______ only to people with specific knowledge,| A．being known | B．having been known | | C．to be known | D．known |
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答案
| D |
解析
| 考查非谓语动词。不要使用那些只为那些具有专业知识的人知道的单词、句式或短语。known to 作后置定语。单词等是被知道的，故用过去分词。 |
举一反三
______ a piece of ice outside in such hot weather, and you’ll soon find it melt.| A．To put | B．Put | C．Putting | D．Having put |
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The pilot asked all the passengers on board to remain________ as the plane was making a landing. | A．seat | B．seating | C．seated | D．to be seating |
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China recently tightened its waters controls near the Huangyan Island to prevent Chinese fishing boats from _______ in the South China Sea.| A．attacking | B．having attacked | | C．being attacked | D．having been attacked |
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______ that he has wasted too much time, the boy is determined to stop playing video games.| A．Realized | B．Realizing | C．To realize | D．Having realized |
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Charles Babbage is generally considered to _______ the first computer.| A．to invent | B．inventing | C．to have invented | D．having invented |
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