Classified by different aims, there are at least 4 major types of test, among which () is to discover what the testee already knows about the target language.

A. kidnapping has become the most profitable business in many parts of the world
B. there is a worldwide increase in kidnappings and many groups have make profits in kidnaps
C. by kidnapping the kidnappers have established their corporations in many parts of the world and earn big money each year
D. in many parts of the world more people have become kidnappers

A. Kofi Annan said this was going to be a five-to-ten year effort costing 250 million dollars
B. Human is spending nine hundred billion dollars a year on military expenditure.
C. Wolfensohn called people to stop spend money on military expenditure
D. Wolfensohn believed that the poverty would never be relieved