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题目
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By the time you finish the book, you _______________ more about Chinese history.
A.will learnB.have learntC.will have learntD.are learning

答案
C
解析

试题分析:考查时态。By与完成时连用。当by后面是过去的时间,使用过去完成时;当by后面是现在的时间,使用现在完成时,当by后面是将来的时间的时候,使用将来完成时。本题By后面的时间状语从句the time you finish the book用一般现在时代替将来时,所以主句使用将来完成时。故C正确。
点评:By与完成时连用。当by后面是过去的时间,使用过去完成时;当by后面是现在的时间,使用现在完成时,当by后面是将来的时间的时候,使用将来完成时。
核心考点
试题【By the time you finish the book, you _______________ more about Chinese history.】;主要考察你对一般现在时等知识点的理解。[详细]
举一反三

No decision _         about any future plan until we have done some research into the student preference.
A.has been madeB.is madeC.is being madeD.will be made

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The ticket       two people to the palace ball.
A.permitsB.admitsC.promisesD.awards

题型:不详难度:| 查看答案

—How long _         like this?
— Three weeks! It"s normal that it rains without stopping these days of the year.
A.will it rainB.is it rainingC.has it been rainingD.does it rain

题型:不详难度:| 查看答案
—Were you surprised by the ending of the film?
----No. I ______the book, so I already knew the story.
A.was readingB.am readingC.have readD.had read

题型:不详难度:| 查看答案
I can’t send her an invitation. I wish I _______ her new address.
A.knowB.would knowC.had knownD.knew

题型:不详难度:| 查看答案
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