－Oh, it’s you, Steve! I you.
－No surprising. I’ve just had my hair cut.
A. don’t recognize
B. haven’t recognized
C. didn’t recognize
D. hadn’t recognized
网友回答
A. don’t recognize
B. haven’t recognized
(答案→)C. didn’t recognize
D. hadn’t recognized
解析：因为说话时已经认出来了，指在说话之前“刚才我没有认出你来”，所以用一般过去时