Mark Twain became the most outstanding writer of his time because he knew his people and the Missis sippi River very well, and he inherited from his mother ______.

A．At a newspaper.
B．At an advertising agency.
C．At a furniture store.
D．At a real estate offic

A．Seeing a film.
B．Diving in the sea.
C．Having a class.
D．Doing an experiment.