For 800 years Oxford and Cambridge universities ________ in everything from Nobel prizes to boat races.
| A．competed | B．had been competing |
| C．have competed | D．compete |
--- It seems that the manager is very unhappy.
--- Surely she is. You see, Steve left the company half an hour ago, with his work_______.
| A．to leave unfinished | B．was left finishing |
| C．leaving to finish | D．left unfinished |
When we sleep is cultural as biological-and practices differ greatly round the globe.
| A．that much | B．so much | C．too much | D．as much |
---I have no idea his proposal was turned down by the committee.
---Me, either.
| A．why it was that | B．how was it that |
| C．was it that why | D．it was that how |
China’s New Food Act provides for a food recall system to producers have to stop productiontheir food isn’t up to standards.
| A．that; if | B．where; if | C．which; when | D．when; where |
Only after you have known someone for some time producers his real worth.
| A．you begin | B．do you begin | C．you do begin | D．begin you |