My friend has returned from the UK,She ___at Oxford for four
My friend has returned from the UK,She ___at Oxford for four years ,during which we communicated …
…with each other on the Internet.
A.studied
B.has studied
C.had studied
D.has been studing
为什么答案是A呢,求讲解
…with each other on the Internet.
A.studied
B.has studied
C.had studied
D.has been studing
为什么答案是A呢,求讲解
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