He'll have learned English for eight years by the time he ________ from the university next year.

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He'll have learned English for eight years by the time he ________ from the university next year.

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He will have learned English for eight years by the time he _____ from the university next year.

1. A.
   will graduate
2. B.
   will have graduated
3. C.
   graduates
4. D.
   is to graduate

 He will have learned English for eight years by the time he _______ from the university next year．

A. will graduate    B. will have graduated     C. graduates         D. is to graduate

He will have learned English for eight years by the time he         from the university next year．

A. will graduate                                                        B. will have graduated

C. graduates                                                              D. is to graduate