He has two sons, one is a doctor, _____ is a student.

There are three books on the table. One is here, where are ______?

I have three pens. One is red, ___ are black.

—Have you got ______ E-mail address?
—Oh yes, mine is wjb80@yahoo. com.

— Do you know ______ man in blue ?
— Yes, he’s a professor of ______ University.

His _____ is low.

There’s _____ apple on the table. ______ apple is for my little brother.

Lucy is _____ good girl. She often helps others.

I can hear the _________ of the bells outside.

Lucy lives_____ Zhengzhou.