21. My elder sister spent a lot of time ______ TV this week.(A) thinking (B) watching (C) looking (D
27. Joan:Will you go with me for a nice dinner? Steve: ______(A) Sure. (B) I’ve got to leave.(C) May
28. Jolly: I will study harder for the coming test.Winnie:______ (A) Safe drive. (B) That’s a good i
29. Debbie: How much is this watch?Clerk:______ (A) Is it a fixed price? (B) It’s about ten o’clock.
31. Customer: Do you have a double room for tonight? Receptionist:______ (A) I’m sorry. How many nig