It is said in the book that Thomas Edison (1847—1931) ________ the world-leading

It is said in the book that Thomas Edison (1847—1931) ________ the world-leading

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It is said in the book that Thomas Edison (1847—1931) ________ the world-leading inventor for sixty years.
A.would beB.has beenC.had beenD.was

答案
D
解析
根据括号内的1847—1931可知,此处应填过去时态;另外,由于没有另一个过去的时间或动作与之比较,故不能用过去完成时,即只能选D。
举一反三
—What’s that terrible noise?
—The neighbors ________ for a party.
A.have preparedB.are preparingC.prepareD.will prepare

题型:不详难度:| 查看答案
The student didn’t pay any attention to the lecture; he ________ of something else.
A.thoughtB.had thoughtC.would thinkD.was thinking

题型:不详难度:| 查看答案
—Didn’t the guard see him breaking into the bank?
—No, he ________ in the other direction.
A.was lookingB.had lookedC.lookedD.is looking

题型:不详难度:| 查看答案
Because the shop ________ , all the T-shirts are sold at half price.
A.has closed downB.closed downC.is closing downD.had closed down

题型:不详难度:| 查看答案
—Has Sam finished his homework today?
—I have no idea. He ________ it this morning.
A.didB.has doneC.was doingD.had done

题型:不详难度:| 查看答案
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