—It’s my birthday today!—____________
— ________ useful tool the computer is! — I agree. It’s ______ interesting as well.
On Sundays, she prefers ________ at home alone ________ with her friends outside.
Her father is a professor in________university in our city.
---I will buy you a new bike if you learn how to swim this summer.---Is that a _______? I’m sure I’ll get the bike.
Bill Gates has donated millions of dollars to charities. He is really a(n)_____man.