Not until the stadium of Bird’s nest was completed in the end back to their normal positio

问题补充：

Not until the stadium of Bird’s nest was completed in the end back to their normal position.

A. did our hearts got

B. did our hearts get

C. our hearts went

D. our hearts did get

答案：

A. did our hearts got

(答案→)B. did our hearts get

C. our hearts went

D. our hearts did get

解析：考查倒装。Not until放在句首时，主句要部分倒装，所以选B。A项错误是因为助动词did之后要用动词原形。