to reach them on the phone, we sent an email instead
_______ what would happen, none of them could find a way out.
Students who pass the test will be ______to the next grade, as has been announced.
The present financial crisis has put the world economy in a difficult .
Now, the world’s focus is all on Shanghai ______ the 2010 world Expo is to be held.
There be any difficulty in passing the oral test since you have practiced a lot in the school.