Be careful when you cross this busy street. ________, you may get run over by a car.
| A．If not | B．If so | C．If any | D．If possible |
It's quite warm here; we ________ turn the heating on yet.
| A．needn’t | B．mustn't |
| C．couldn’t | D．wouldn't |
Close the door of fear behind you, and you ____ the door of faith open before you.
| A．saw | B．have seen |
| C．will see | D．are seeing |
Sarah made ______ to the airport just in time to catch her plane this morning.
| A．herself | B．this | C．that | D．it |
Now more and more workers ______their free time trying to improve themselves at school or college.
| A．take | B．cost | C．spend | D．pay |
一Can I have the document right now?
一Of course．Wait a minute and I ’ll have my secretary it for you.
| A．to print | B．printing |
| C．printed | D．print |