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My friend has returned from the UK. She at Oxford for four years, during which w

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My friend has returned from the UK. She at Oxford for four years, during which w

My friend has returned from the UK. She ______ atOxford for four years, during which we communicated with each other on theInternet.

A.studied           B.has studied        C.had studied        D.has beenstudying

 

试题答案

【答案】

A

【解析】

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