She sells things.She is a ________.
A．teacher B．salesperson C．doctor
She is an actress ________ TV.
A．inB．onC．for
If you enjoy math，you can ________ an accountant.
A．doB．areC．be
Policewoman Yuan Yuan often helps tourists ________ their way.
A．findsB．findingC．find
He helps sick people.He is a ________.
A．singerB．cleanerC．doctor