We __________ have proved great adventurers, but we have done the greatest march ever made in the past ten years.
| A．needn’t | B．may not |
| C．shouldn’t | D．mustn’t |
Schools should be lively places where individuals are encouraged to ______ to their greatest potential.
| A．cultivate | B．accelerate |
| C．expand | D．develop |
Hard work and lack of sleep have _____ her beauty and youth in recent years.
| A．worn out | B．tried out |
| C．made out | D．sent out |
We shall not start the project until it __________ by the committee.
| A．will be approved | B．approves |
| C．has been approved | D．is to approve |
The British team, ______ several attempts to climb Yulong Xueshan, decided to have another try this summer.
| A．making | B．having made | C．to make | D．made |
－Mary, how did your Math test go?
－I had thought I _________, but in fact I came in the top 10 in my class.
| A．should have failed | B．couldn’t have failed |
| C．might have failed | D．shouldn’t have failed |