—Well that was really a good meal. I you were a really good cook.—Thank you.A. didn’t kn

问题补充：

—Well, that was really a good meal. I you were a really good cook.

—Thank you.

A. didn’t know

B. don’t know

C. haven’t know

D. hadn’t known

答案：

(答案→)A. didn’t know

B. don’t know

C. haven’t know

D. hadn’t known

解析：“不知道”是过去的事情，现在已知道，应用瞬间过去时。故选A。