Anna: Hi, Keith. How's it going?

Keith: __________. I lost my wallet, and it had all my ID and credit cards in it.

A. Not too bad

B. Not too good

C. Not very well

D. Not at all

B【解析]Not too bad是“还可以，不错”的意思；Not too good恰好与Not too bad相反，表示“不怎么样”的意思；Not very well是对询问身体好坏的否定回答；Not at all是回答他人致谢的用法，表示“不客气”的意思。