Three fourths of the homework _______ today.A．has finishedB．has been finishedC．h
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Three fourths of the homework _______ today.| A．has finished | B．has been finished | C．have finished | D．have been finished |
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答案
| B |
解析
| 考查时态及主谓一致。句意：今天有四分之一的作业被完成了。可知本句描述的是现在已完成的动作。当前面有分数修饰时，谓语动词与被修饰词保持一直，homework为抽象名词不可数，故谓语动词用单数，选B。 |
举一反三
--It’s said that Mr. Wang ______ into a new apartment last Sunday.
--Right. I went to his help.| A．moved | B．had moved | C．is moving | D．has moved |
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Fortunately, the little girl the air – crash, but unluckily, the others on the flight were killed.| A．was survived | B．has been survived | C．was surviving | D．survived |
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There______ more than one student who_______ late this morning. | A．have been, was | B．has been, were | C．were, was | D．was, was |
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Unfortunately, when I arrived she ________, so we had only time for a few words.| A．just left | B．had just left | | C．has just left | D．was just leaving |
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If Newton lived today, he would be surprised by what _______ in science and technology.| A．had discovered | B．had been discovered | | C．has discovered | D．has been discovered |
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