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题目
题型:不详难度:来源:
Experiments of this kind _______in both the U.S. and Europe well before the Second World War started.
A.have conductedB.have been conducted
C.had conductedD.had been conducted

答案
D
解析

试题分析:句意:在第二次世界大战之前这种实验就在美国和欧洲做过。因为时间状语before the Second World War started.这里的谓语动词是过去式,conduct是在这个动作之前的发生的动作,故用过去完成时,又因为experiments与conduct之间是被动关系,故选D。
点评:本题难度适中。动词的时态及语态放在一起考查增加了试题的难度,需要考生有分析理解复杂的句子结构的能力。
即学即练:In the last few years thousands of films_______ all over the world.
A.have produced   B. have been produced   C. are producing      D. are being produced
解析:B。句意:“在过去的几年时间里,全世界制作了成千上万部电影。”in the last few years在过去的几年时间里,其实是从过去算到现在,是现在完成时的标志。选B。
核心考点
试题【 Experiments of this kind _______in both the U.S. and Europe well before the Sec】;主要考察你对一般现在时等知识点的理解。[详细]
举一反三
The three of us ______ around Europe for about a month last summer.
A.traveled B.have traveled C.had traveled D.travel

题型:不详难度:| 查看答案
—Do you regret not having accepted their invitation?
—Why should I? I        as much, but I’m glad to devote myself to what interests me most.
A.didn’t earnB.don’t earnC.hadn’t earnedD.haven’t earned

题型:不详难度:| 查看答案
—I have brought you the book you need.
—Oh, good! I        afraid that you        .
A.was; had forgottenB.am; have forgotten
C.was; will forgetD.am; forgot

题型:不详难度:| 查看答案
It __________ me that she just expects me to help, but I had so many things to do today.
A.annoysB.surprisesC.excitesD.delights

题型:不详难度:| 查看答案
He ________ his position because he had been offered a better job.
A.resignedB.retiredC.dismissedD.fired

题型:不详难度:| 查看答案
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