The present financial crisis has put the world economy in a difficult .
A. occasion B. case C. background D. situation
Now, the world’s focus is all on Shanghai ______ the 2010 world Expo is to be held.
A. when B. whose C. where D. that
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
