Since the new director took office, we have worked __ _hours, －that is to say, we work more freely.
A．flexible B．compulsory C．strict D．endless
__ _ is well-known to all is that the 2010 Shanghai World Expo has been brought to an end.
A．As B．That C．What D．It
Those successful deaf dancers think that dancing is an activity sight matters more than hearing.
A．when B．whose C．which D．where
the secret of nature, they young scientist has little time for entertainment.
A．Devoted to betray B．Devoting himself to bring to light
C．Devoted to unearthing D．Devoting to exploring
Her excellent performance in the competition proved that she was a winner.
A．value B．worthy C．worth D．worthwhile
Make sure the gas is turned off after a bath, which would cause danger.
A．somehow B．meanwhile C．otherwise D．furthermore
