Every possible means ________ to prevent the air pollution, but the sky is still not clear.
| A．is used | B．are used | C．has been used | D．have been used |
She was the first woman ______ to the board.
| A．to be appointed | B．having been appointed | C．appointing | D．to appoint |
—Was ______ Bill, ______ played basketball very well, ______ helped the blind man cross the road?
—Yes, of course. He is always ready to help others.
| A．it; that; who | B．this; who; that | C．which; that; that | D．it; who; that |
When he was driving home, he was stopped by the policeman and was _______ of speeding.
| A．charged | B．blamed | C．accused | D．warned |
I don’t know the reason ______ you were absent from the meeting, but I am sure that someone will tell me the reason ______ you haven’t told me.
| A．why; that | B．that; why | C．because; which | D．of which; that |
We often associate the name of Li Ning ______ gymnastics.
| A．with | B．by | C．to | D．in |