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题目
题型:不详难度:来源:
E-shopping, when properly _____ ,can save us a lot of time and energy.
A.doneB.doingC.to doD.is done

答案
A
解析
考查非谓语动词。逻辑主语E-shopping与do之间的关系为被动关系,故用过去分词,相当于when it is done properly,选A。
核心考点
试题【E-shopping, when properly _____ ,can save us a lot of time and energy.A.doneB.do】;主要考察你对现在分词等知识点的理解。[详细]
举一反三
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--- They want         .
A.to mendB.being mendedC.mendingD.mended

题型:不详难度:| 查看答案
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题型:不详难度:| 查看答案
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A.practising speakB.practising speaking
C.practising to speakD.to practise spoken

题型:不详难度:| 查看答案
The news has _______ all over the country _______ the spaceship succeeded in returning to the earth.
A.inspired; whichB.inspiring; thatC.inspired ; thatD.spread; which

题型:不详难度:| 查看答案
The plan ________encourage the employees to improve their work turned out to be a success.
A.having designed toB.designed to
C.to design toD.designing to

题型:不详难度:| 查看答案
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