He _____ English for ten years by the time he graduates from the university next year.

A. learned
B. will have learned
C. has learned
D. had learned
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科目：高中英語 來源：0109 同步題 題型：單選題

He _____ English for ten years by the time he graduates from the university next year.
[     ]
A. learned
B. will have learned
C. has learned
D. had learned

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