Not unti his fellows criticized him to admit his mistake.A. does he beginB. did he beginC

问题补充：

Not unti his fellows criticized him to admit his mistake.

A. does he begin

B. did he begin

C. began he

D. had he begun

答案：

A. does he begin

(答案→)B. did he begin

C. began he

D. had he begun

解析：not until 位于句首，句子使用部分倒装。观察句子，从criticized可知句子应与过去有关，排除A；C答案为完全倒装。