问题补充：
(·辽宁，26)At no timethe 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
答案：
A. they actually broke
B. do they actually break
(答案→)C. did they actually break
D. they had actually broken
解析：考查倒装句型。否定词或否定短语放于句首，句子要不完全倒装，此处at no time(在任何时候都不，决不)引起句子不完全倒装，即将助动词放于主语之前。根据题干时态标志词was可知选C。
