当前位置:高中试题 > 英语试题 > 连词 > Edison was a clever boy, and ______ he was fourteen, he had learned advance math...
题目
题型:不详难度:来源:
Edison was a clever boy, and ______ he was fourteen, he had learned advance mathematics by himself.
A.whenever B.by the timeC.the moment D.ever since

答案

解析
考察时态。By the time到…时为止;根据he had learned advance mathematics by himself中的过去完成时,可知所选择的连词是与完成时连用的,结合句意可知B正确。句意:爱迪生是一个聪明的孩子。到他14岁的时候,他已经自学了高等数学。
核心考点
试题【Edison was a clever boy, and ______ he was fourteen, he had learned advance math】;主要考察你对连词等知识点的理解。[详细]
举一反三
Leave your key with your neighbor      _you lock yourself out one day.
A.as long asB.in case C.even thoughD.as if

题型:不详难度:| 查看答案
It sounds like something is wrong with the car’s engine. _____ , we’d  better take it to the garage immediately.
A.OtherwiseB.If not
C.But for thatD.If so

题型:不详难度:| 查看答案
______ volleyball is her main focus, she’s also great at basketball.
A  Since   B. Once     C. Unless     D. While
题型:不详难度:| 查看答案
What I want to know is ______ he likes the gift given by us.
A.thatB.ifC.whetherD.不填

题型:不详难度:| 查看答案
---It cost me 30 yuan to get here.
---Well, it was crazy of you to take a taxi        you would come by bus as well.
A.unlessB.whenC.ifD.because

题型:不详难度:| 查看答案
版权所有 CopyRight © 2012-2019 超级试练试题库 All Rights Reserved.