The mayor of Beijing said that all construction work for the Beijing Olympics _______by the year 2006 .
| A．was completed | B．had been completed | C．has been completed | D．is completed |
Tell John not to leave the house unless he _________ that the lights_________.
| A．will make sure, will be turned off | B．will make sure, will turn off |
| C．makes sure, are turned off | D．is made sure, will be turned off |
Will you see to ______ that my birds are well looked after while I am away?
| A．them | B．yourself | C．it | D．me |
______ you apologize for what you have just said ______ it is all over between us.
| A．Either; or | B．Not only; but also | C．Whether; or | D．Neither; nor |
. --- The terrible accident is under investigation.
--- Actually, quicker action______ those workers trapped in the mine.
| A．might have saved | B．must have saved |
| C．should have saved | D．could have saved |
Having __________ no-meat day would be a good way of encouraging ___________ low carbon life-style.
| A．a; the | B．a; a | C．the; the | D．the; a |