— Hurry up. The bus is coming.— Oh, no. We mustn’t cross the street ________ the traffic light is green.
Not only Kate but also Mary _______ interested in cooking.A. is B. are C. be
—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. /