A (n) __________ of scientists are looking into the matter and have realized a certain __________ of time is to be spent.
| A．number; amount | B．number; amounts |
| C．amount; amount | D．amount; number |
It was foolish of him to ________ his notes while taking such an easy test, and as a result, he got punished.
| A．refer to | B．speak of | C．cheat in | D．take out |
Don’t handle the vase as if it ____ made of steel.
| A．is | B．were | C．has been | D．had been |
—How about your journey to Mount Emei?
—Everything was wonderful except that our car________twice on the way.
| A．slowed down | B．broke down | C．got down | D．put down |
We ______ the difficulty together, but why didn’t you tell me?
| A．should face | B．might face | C．could have faced | D．must have faced |
—Do you have enough to________all your daily expenses?
—Oh yes，enough and to spare.
| A．cover | B．spend | C．fill | D．offer |