With everything ________, he felt tired but happy.
| A．to do | B．done | C．had been done | D．to be done |
Many people think that it is ______ making such an experiment.
| A．valuable | B．worthwhile | C．convenient | D．important |
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 |