21. The winning of hosting _______ 2010 World Expo is _______ victory not only for Shanghai residents, but for ___________ people of the whole Chinese nation.
David has a big house, which ____ eight rooms.
This visit will greatly ____ our understanding of your great country.
Peter is really ____; I don’t think I will get ____ working with him in the same office.
House prices keep rising these days. A flat in our city costs ____ now as in 1990.
Make sure that the machine is kept where it is not ____ to children.