1 . During our trip to the Great Wall last week, I couldn’t stop thinking about how huge a project it ________ have been to build it in ancient times.

A．must

B．could

C．should

D．need

3 . Jon did a great job in the speech contest. He ________ many times last week.

A．need have practised	B．might have practised
C．must have practised	D．should have practised

4 . Mary’s bedroom is so tidy. She________have cleaned it yesterday.

A．must

B．should

C．need

D．would

5 . During our trip to the Great Wall last week, I couldn’t stop thinking that building it ________ have been a huge project in ancient times.

A．should

B．must

C．could

D．need

6 . This ___________an improvement, but “breakthrough” was an overstatement.

A．can have been	B．should have been
C．may have been	D．need have been

7 . ---Did you punish him for losing your digital camera？
---Yes, but I don't think I ______．

A．should do that	B．need to have done so
C．ought have done that	D．should have done so

8 . Jenny _______ have kept her word. I wonder why she changed her mind.

A．must

B．should

C．need

D．would

9 . —I have watered all the plants in the garden.
—Thanks, Tony, but you _____ then. It’s reported that there will be a storm tonight.

A．couldn’t have watered	B．needn’t have watered
C．could water	D．needn’t water

10 .
1. Owing to our joint efforts, the task         ahead of schedule, and then we summed up our working experience. (fulfil)
由于我们的共同努力，任务提前完成了； 随后我们总结了工作经验。
2. You             the flowers, for the weather report says it is going to rain soon. (water)
你本没必要浇这些花的，因为天气预报说很快要下雨了。
3. Suddenly              the dilemma, he was at a loss at first. But later he was determined to hold on. (face)
突然面临着进退两难的困境，他起初不知所措。便随后他决定顽强地坚持下去。
4. The true value of life is not               but what you have done. (gain)
生命的真正价值不在于你得到什么，而在于你做过什么。
5. Failure is the mother of success. In no case              ; keep on trying. (lose)
失败乃成功之母。在任何情况下，我们都不应灰心，继续努力。
6. In our life, we will encounter various challenges.             is the best way to deal with them. (improve)
我们在生活中遇到各种各样的挑战。提升自我是最好的应对办法。
7. As I find some English pronunciations rather confusing, I           if you could give me some advice. (appreciate)
我发现有些英语发音容易弄错，如果你能给我一些建议我将感激不尽。
8.           or how old you get, there’s always something new to learn about. After all, life is full of surprises. (go)
不管你去哪里，不管你有多大，总有新东西要学习。毕竟，生活总是充满惊喜。
9. Peter’s work always gives satisfaction,            twice in less than two years. (promote)
彼得的工作总是令人满意，为此，在不到两年时间里他被提升两次。
10. It is reported that the United States               energy as the whole Europe. (use)
据报道，美国使用的能源是整个欧洲的两倍。