The book has been translated into thirty languages since it ______ on the market

The book has been translated into thirty languages since it ______ on the market

题型:不详难度:来源:
The book has been translated into thirty languages since it ______ on the market in 1973.
A.had comeB.has comeC.cameD.comes

答案
C
解析

试题分析:考查时态:since后面的时态是过去时,主句是现在完成时,句意:自从1973年上市,这本书已经被翻译成30种语言。选C。
点评:时态的考查结合上下文找到动作发生的时间就好做了。要注意一些固定用法。
举一反三
Seeing the chemical ________ to the sunlight, Mr. Lee warned the workers to be careful when dealing with it.
A.to exposeB.exposingC.exposedD.being exposed

题型:不详难度:| 查看答案
With the development of modern society, E-mail as well as telephones         an important part in daily communication.
A.have playedB.is playingC.are playingD.played

题型:不详难度:| 查看答案
By the time she ________ home, her parents will have prepared some delicious food for her.
A.will get B.will have got C.is getting D.gets

题型:不详难度:| 查看答案
---Don"t put the waste on the ground.
---Oh, I"m very sorry. I ________ the dustbin(垃圾箱) there.
A.don"t seeB.isn"t seeingC.didn"t seeD.haven"t seen

题型:不详难度:| 查看答案
So far this year we ________ a fall in house prices by between 5 and 10 percent.
A.sawB.had seenC.have seenD.see

题型:不详难度:| 查看答案
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