When I heard about the marriage of Andy Lau, you could have knocked me down with a _______ .

 Internet is an important _____ for people to get the latest news.

Last night he saw two dark ___enter the building, and then there was the explosion.

Because of the continuous bad weather, the building work of the bridge over the Yangtze River is far behind        

Less than ten percent of the employees in their company are women. That is to say, women are in the______.