By the first day of August, 2007, the PLA ________ for eighty years.A．foundedB．h
题型：不详难度：来源：
By the first day of August, 2007, the PLA ________ for eighty years.| A．founded | B．has founded | | C．has been found | D．had been founded |
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答案
| D |
解析
试题分析：句意：到2007年8月1日为止，中国人民解放军已经成立了80年了。句中有by+过去的时间，表示到…为止，句子用过去完成时，found成立，故选D
点评：动词的时态是学习英语过程中非常重要的知识。现在完成时表示动词在过去发生对现在造成的影响。现在完成时往往和already,yet,for+一段时间，since+点时间的时间状语连用。过去完成时表示动作发生在过去的过去，句子中强调过去的动作对现在造成的影响。 |
举一反三
—____________ Jill ______________ on the phone again?
—Yes. He often _____________ on the phone for an hour.| A．Does; talk; talks | B．Is; talking; talks | | C．Is; talking; is talking | D．Does; talk; talking |
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6. So far, most of the work by others, it’s your turn to do the rest of it.| A．finished | B．has finished | C．has been finished | D．is finished |
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The zoo keeper is worried because the number of visitors ______ smaller and smaller .| A．is becoming | B．become | C．became | D．to become |
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There ____ a talk show on CCTV-4 at eight this evening .| A．is going to be | B．will have | C．is going to have | D．is having |
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Where is my pen ? Millie _____ it here but I can’t find it .| A．puts | B．put | C．is putting | D．was putting |
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