You look so tired. You______have stayed up late again.
| A．should | B．can | C．may | D．must |
There____________be any difficulty in passing the oral test since you have practiced a lot in the school.
| A．mustn’t | B．shan’t | C．shouldn’t | D．needn’t |
____you are familiar with the author’s ideas, try reading all the sections as quickly as you possibly can.
| A．Now that | B．Ever since | C．So that | D．As long as |
Only lately _____ about the dark secrets behind the seemingly-happy marriage of the
golf star Tiger Woods.
| A．the public have known | B．were the public known |
| C．have the public known | D．the public knew |
---Did you listen to the lecture given by the famous herbalist doctor Zhang Wuben?
--- No, we ______ it. But we had a lot of traffic on our way.
| A．could have attended | B．must have attended |
| C．could attend | D．shouldn't have attended |
Barrack Obama’s recent visit to the Asian nations clearly sent a message to the
world______ Asia is important in America’s global partnership.
| A．which | B．where | C．that | D．as |