On his way home yesterday , Tom was hit on the head_____he had time to realize what was happening .
| A．since | B．before | C．when | D．until |
—Where is that report?
—I brought it to you _______ you were in Mr. Black’s office yesterday.
| A．if | B．because | C．when | D．before |
We have every reason to believe that ______ 2010 World Expo in Shanghai will be ______success.
| A．the; a | B．the; / | C．/; a | D．a; a |
Zhao Benshan, whose overwork ____ his health failure last year, is reported to have performed less successfully in the 2010 Spring Festival Gala on CCTV．
| A．submitted to | B．admitted to | C．devoted to | D．contributed to |
Whatever he explained, he couldn’t ____ the policeman that he was innocent．
| A．confirm | B．present | C．convince | D．admit |
You must attend the meeting ____ at ten o’clock, as it is scheduled—not a minute early or late．
| A．accurately | B．punctually | C．flexibly | D．approximately |