—Do you know _______ man in jeans?—Yes. He’s a professor of _______ university.

This is ____ orange book and that is ____ apple.

Tom is _____ American boy. He plays ________ basketball very well.

 Jim is________ honest boy in my class. He bought me ________ useful book as a birthday present.

We work together to achieve our common purpose: __________ world that is safer, cleaner and healthier than __________ one we are living in.