With Shanghai World Expo drawing near, volunteers are making use of every minute to ____ their foreign language because language volunteers must pass a written test and an interview.
| A．polish up | B．take up | C．use up | D．make up |
—Would you permit me ___________ here?
— Sorry. We don’t permit ___________ in the lab.
| A．smoking; smoking | B．to smoke; to smoke |
| C．smoking; to smoke | D．to smoke; smoking |
I’ve taken someone else’s green sweater by mistakes. It ______ Harry’s. He always wears green..
| A．could be | B．will be | C．mustn’t be | D．has to be |
_____ means to do what you promised.
| A．Keeping your words | B．Giving your word | C．To keep your word | D．To have words |
It is our ______ to enjoy the moon on Mid-Autumn night.
| A．habit | B．custom | C．hobby | D．rule |
______ him and then try to copy what he does.
| A．Mind | B．Glare at | C．Stare at | D．Watch |