—Did you enjoy staying with your friend last week Lily?—Yes. I with him for a long time.

问题补充：

—Did you enjoy staying with your friend last week, Lily?

—Yes. I with him for a long time.

A. haven’t stayed

B. didn’t stay

C. hadn’t stayed

D. wouldn’t stay

答案：

A. haven’t stayed

B. didn’t stay

(答案→)C. hadn’t stayed

D. wouldn’t stay

解析：考查情景交际和时态。句意：--莉莉，上周和朋友待一起开心吗？--是的。我都很久没他在一起了。根据问句中的Did判断，是过去的事情，“过去的过去”用过去完成时，故选C。