He in Shanghai University for four years before he Beijing.A. studied had goneB. had st

问题补充：

He in Shanghai University for four years before he Beijing.

A. studied, had gone

B. had studied, went

C. has studied, goes

D. had studied, had gone

答案：

A. studied, had gone

(答案→)B. had studied, went

C. has studied, goes

D. had studied, had gone

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