–It’s eight o’clock. We are late _______ the school.
to B. at C. in D for
Everyone __________go through the security check（安检） when entering the Bird’s Nest stadium.
| A．can | B．may | C．must | D．might |
I was drawing a horse when Jim __________to my house.
| A．comes | B．came | C．is coming | D．was coming |
Please __________your mobile phone when you are having a meeting.
| A．don’t use | B．doesn’t use |
| C．use | D．to use |
Now computers are very popular and they are much __________than before.
| A．cheap | B．cheaper |
| C．cheapest | D．the cheapest |
Today my mother asked me __________the rooms with her.
| A．clean | B．to clean | C．cleaing | D．cleaned |