“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：考察倒装句。Not a single mistake这个否定短语放在句首，后面使用部分倒装的形式。从时态上来看，本题没有出现过去的过去这个时间，故C错误。结合句意可知B正确。句意：干的好！John。这次在你的试卷上一个错误也没有。