He English for six years by the time he takes his examination. A. was studying B. would have been studying C. had been studying D. will have been studying 查看更多

 

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He ______ English for six years by the time he takes his examination.

A. was studying               B. would have been studying

C. had been studying           D. will have been studying

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He ______ English for six years by the time he takes his examination.

A. was studying        B. would have been studying

C. had been studying    D. will have been studying

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He ______ English for six years by the time he takes his examination.

A.was studying

B.would have been studying

C.had been studying

D.will have been studying

 

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He ______ English for six years by the time he takes his examination.

A.was studyingB.would have been studying
C.had been studyingD.will have been studying

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