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题目
题型:不详难度:来源:
It was quite a long time__________I made it out what had happened.
A.afterB.beforeC.whenD.since

答案
B
解析
在“It+be+时间名词+before/since”从句句型中,连词before与since极易混淆。用before引导时,句意是“过了多久才……”,主句中的be动词为过去时或将来时态;用since引导时,其句意是“自从……以来已经很久了”,主句中的be动词多为现在时(或现在完成时)或一般过去时(此时since从句要用过去完成时)。
核心考点
试题【It was quite a long time__________I made it out what had happened.A.afterB.befo】;主要考察你对句法等知识点的理解。[详细]
举一反三
In my opinion,his suggestion__________right or not,should be considered.
A.ifB.whichC.whenD.whether

题型:不详难度:| 查看答案
_________,so he didn’t come to school last week.
A.Though he was illB.Being ill
C.Having been illD.He was ill

题型:不详难度:| 查看答案
__________ you go,you should bear the motherland in mind.
A.WhereB.Whenever
C.HoweverD.Wherever

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Plants grow best__________it is warm and wet.
A.whichB.in whichC.whereD.that

题型:不详难度:| 查看答案
__________ problems you have,you can always come to me for help.
A.WhatB.Whatever
C.WheneverD.Which

题型:不详难度:| 查看答案
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