1.
Doctor: It is good to see you.
Man:    It's good to see you, too.
Doctor: What's the matter today?
Man:    I have a terrible stomachache.
        Maybe I ate something bad yesterday.

Practice:

1.
Doctor: It is good to see you.
Man:    It's good to see you, too.
Doctor: What's the matter today?
Man:    I have a ____________.
        Maybe I _____________ yesterday.