27. Alice:______ do you practice playing the piano?
Kelly: When my mom is at home,I have to practice every day. But she’s away on a business trip this week!
(A) How about (B) How much (C) How long (D) How often
52. Which is the best answer when a shop clerk says, “Can I help you?”
(A) No, I can’t. (B) I’ll just look around. (C) Never mind. (D) Go do your things.