Our children are interested in giving away their old books to needy people

A. Our children find it interesting to give away their old books to needy people

B. For our children, it is interesting for needy people to give away their old books.

C. One of the most interesting things that our children do is to give away old books to needy people.

D. Giving away old books to needy people is one of our children’s hobbies.