Sanya is in the south of the island and it is famous ____ “Tianya Haijiao”.
Lao She is famous _______ his play _______ a writer.
—_______ do you talk to your teacher at the School Air? —Once a week.
A library with two hundred thousand books _______ to the school last year.
The customs in America are different _______ those in China.
We visited Beijing University _______ the first day of our trip.