______ is no wonder that people say that computers are ______ the world.
What lesson China can draw from ____ financial crisis (金融危机) in the United States has become _____ hot topic in Beijing..
-- Can I look at the menu for a few more minutes before I order?--- Of course. _______, Sir.
Only when in the afternoon able to leave.
There are 51 students in Class Three, _____ failed in the test.
______ happened to be no one in that house when the typhoon hit the area.