To know what is good and doing what is right are two different things.

A:and B:doing C:are D:different

Conversation 5What is the woman doing now

A:She is serving a customer. B:She is conducting an interview. C:She is doing some recording.

Conversation 5What is the woman doing now

A:She is serving a customer. B:She is conducting an interview. C:She is doing some recording.

Conversation 5What is the woman doing now

A:She is serving a customer. B:She is conducting an interview. C:She is doing some recording.

(Whatever) is worth doing (at all) is worth (doing it) (well).（　）

A:Whatever B:at all C:doing it D:well