The second he heard the news, a(n) ______ of surprise appeared on his face.
| A．attention | B．situation |
| C．function | D．expression |
._____ in thought , he almost ran into the car in front of him .
| A．Losing | B．Having lost | C．Lost | D．To lost |
I'll have you ______ English in six months .
| A．speaking | B．speak | C．spoken | D．be able to speak |
I posted the letter some time _____ the week .
| A．in | B．during | C．throughout | D．within |
Take a taxi , _____ you'll miss your train .
| A．and | B．if | C．otherwise | D．or |
If you _____ stop smoking , you can only expect to have a bad cough .
| A．won't | B．would not | C．do not | D．can not |