Materials of this kind ____ once ____ on the wall.
| A．don’t wash, painted | B．don’t wash, painting |
| C．aren’t washed, painted | D．aren’t washed, painting |
___in the regulations that one should not tell other people the password of your email account.
| A．What is recommended | B．What recommend |
| C．It is recommended | D．It recommend |
— Sorry to have hurt you
— __________. You didn’t mean to, did you?
| A．Forget it | B．Take it easy | C．All right | D．Don’t say so |
So quickly ____________ that what is a possibility today may be a reality tomorrow.
| A．is science advancing | B．science is advancing |
| C．will science advance | D．science will advance |
--- Would you care for a cup of coffee?
--- I ________ one. Thank you just the same.
| A．had | B．have had | C．would have | D．will have |
A certain percent of your salary is ________ by the employer as insurance payments.
| A．kept away | B．kept out | C．kept up | D．kept back |