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 studying |
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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 studying |