求英语大神解答
before the trip
The family sold "their family business in real estate and a small news paper".
The family sold "their large house".
the children said good bye to their classmates.
during the trip
they visited big cities and small towns in all 50 states.
they visited all birthplaces of all the US presidents.
they interviewed many people on their way.
they stayed at other people's home.
they had people signing their "travel book".
they wrote stories for the newspaper.
they wrote stories for their internet home page.
they received letters from schoolchildren.
after the trip
the family wrote a book about their travels