听下面一段独白，回答以下小题。
【小题1】When did the speaker and his family come back to the United States?

A．Three years ago.

B．Four years ago.

C．Twenty years ago.

【小题2】Why don’t the speaker’s family return to Britain now?

A．They don’t like Britain.

B．The daughter has to continue her study.

C．They’re happier living in the United States.

【小题3】What is the purpose of the speaker’s six-week trip in England?

A．To see his friends.

B．To go sightseeing.

C．To advertise his new book.

【小题4】What does the speaker think of his six-week trip?

A．Expensive.

B．Difficult.

C．Satisfying.