______, most of the spelling mistakes can be avoided.
| A．Checking your composition carefully | B．Check your composition carefully |
| C．If you check your composition carefully | D．Your composition is carefully checked |
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 |
I’m afraid physics is completely ________me and I have to ask you for help.
| A．beyond | B．over | C．against | D．off |