While he_____ on the phone, a man walked into his room.
—Why don’t you buy the computer? —It costs too much. I can’t ________ it. A. afford B. borrow C. sell
English is useful. Let’s try _______ best to learn it well. A. us B. our C. ourselves
We can get _______ touch with David on the Internet. A. in B. on C. to
—May I have _______ bill, please? —Let me see. It’s¥150. A. a B. the C. /
—______ kind girl Nancy is! —Yes, she is always ready to help others.