.Operation rooms should be kept free ______ bacteria of any kind.
| A．with | B．for | C．from | D．to |
The number of deaths from heart disease will be reduced greatly if people ____ to ear more fruit and vitamins.
| A．persuade | B．will persuade | C．be persuade | D．are persuaded |
The mayor of Beijing says that all construction work for the Beijing Olympics ____ by 2006.
| A．has been completed | B．has completed |
| C．will have been completed | D．will have completed |
— George and Lucy got married last week. Did you go to their wedding?
— No. I ____. Did they have a big wedding?
| A．was not invited | B．have not been invited |
| C．hadn’t been invited | D．didn’t invite |
He is known _____ his being on time, so we don’t know the reason ____ his being late this time.
| A．for; of | B．as; for | C．for; for | D．of; of |
How beautifully she sang! I have never heard _______ song.
| A．the better | B．a better | C．the best | D．a best |