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题目
题型:不详难度:来源:
—How long have you known the doctor ?
—         he helped me three years ago.
A.When B.Before C.BecauseD.Since

答案
D
解析
考查情景交际和时间状语从句。“你认识那个医生多久了?”“自从三年前他帮助我的时候。”since加含一般过去时的句子表示一段时间,主句用现在完成时。本句的完整形式是I have you known the doctor since he helped me three years ago.故选D。
核心考点
试题【—How long have you known the doctor ? —         he helped me three years ago.A.W】;主要考察你对从属连词等知识点的理解。[详细]
举一反三
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题型:不详难度:| 查看答案
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-- Yes, ________ it isn’t long and there aren’t any new words in it.
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题型:不详难度:| 查看答案
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题型:不详难度:| 查看答案
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B. spent me two hours to finish the job
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题型:不详难度:| 查看答案
Do you have _____ brothers ______ sisters?
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题型:不详难度:| 查看答案
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