---Must I work out the problem right now?
---Yes, you _______. It’s very serious.
| A．can | B．must | C．may | D．should |
When I got home, I saw my father _________TV.
| A．watched | B．watches | C．watching | D．to watch |
Some people don’t like living in noisy cities, so they move _________.
| A．interesting somewhere | B．somewhere quiet |
| C．warm anywhere | D．anywhere beautiful |
—I want to eat some traditional Chinese food.
—You had better go to_______
A． |
B． |
C． |
D． |
—May I borrow your CD?
—Sorry, I _______it at home.
| A．forgot | B．left | C．took | D．leave |
—I can not use the new mobile phone. Could you please show me_______.
—Sure.
| A． what to do that | B．how to do it | C．how to do | D．what to do it |