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 |
Many websites have been _______ to help people study foreign languages.
| A．set off | B．set up | C．set down | D．set out |
—What do you think of Sam, the newcomer? —Well, he talks as if he ________ everything.
| A．had known | B．has known | C．knew | D．will know |
A great number of visitors __________ attracted to my hometown, and the number of foreigners there _______ quite large.
| A．are; are | B．are; is | C．is; are | D．is; is |
Kathy told me that all the doors and windows _______ when she arrived this morning.
| A．have cleaned | B．have been cleaned |
C．had cleaned | D．had been cleaned |
The woman, ____ eyes were filled with tears, expressed her thanks to the soldier who saved her son.
| A．whom | B．whose | C．of whom | D．for whose |