_______ I’m not sure of winning the match, I will have a try anyway.
| A．While | B．Before | C．Once | D．Since |
Nuclear radiation is said __________ the biggest health challenge in Japanese Earthquake over the past few months．
| A．being | B．to be | C．to have been | D．that it is |
He felt ___________ of cheating in the exam，deciding never to do such things again．
| A．shame | B．ashamed | C．sorry | D．shameful |
As was expected，that the magazine．Put out the online ___________ mademore readers pay attention to it．
| A．version | B．conclusion |
| C．admission | D．category |
Just in front of our house___ with a history of 1000 years．
| A．does at all tree stand | B．stands a tall tree |
| C．at all tree is standing | D．at all tree stands |
—Did you see the CEO in his office?
—Yes，he _________ by the journalist from BBC．
A．has been interviewed B．is being interviewed
C．had been interviewed D．was being interviewed