【题目】At no time ________ the rules of the game.It was unfair to punish them.
A．they actually broke B．do they actually break
C．did they actually break D．they had actually broken
在线课程【答案】C
【解析】
试题分析：考查倒装。否定介词短语位于句首，用部分倒装。根据后面“it was unfair to punish them”中谓语是过去时，所以选C而不选B。