“Well done, John! Not a single mistake in your exam paper this time!” said the teacher．
A. you made
B. did you make
C. had you made
D. you have made
网友回答
A. you made
(答案→)B. did you make
C. had you made
D. you have made
解析：否定意义的词开头句子采用倒装，又因为描述过去的事情用一般过去时。 老师说：“做得好！这次考试卷中没有一个错误”。选B