he World Cup at hand, _______ hasbeen a heated discussion over which country the championship will go to.

Obesity is ________ major concern for public health officials and also may affect ________ test scores of students.

English has large vocabulary, hasn’t it?–Yes, _____ more words and expressions and you will find it easier to read and communicate

Universities have the right to develop in their own way, but whatever they do, their polices must be consistent with the nation’s _________laws.

____all kinds of difficulties，the workers have made rapid progress in the construction of the World Expo 2010 Shanghai