—You must have met him the other day.　　—Oh no I .A. hadn'tB. mustn'tC. haven'tD. didn't

问题补充：

—You must have met him the other day.

—Oh, no, I .

A. hadn

B. mustn

C. haven

D. didn

答案：

A. hadn

B. mustn

C. haven

(答案→)D. didn

解析：选择D。 问句是对过去情况的猜测，所以答句用一般过去时。I didn’t是I didn’t meet him the other day. 的省略。