【C4】
A. natural
B. typical
C. particular
D. unique
【C6】
A. needs
B. realms
C. desires
D. intentions
【C18】
A. But
B. So
C. As
D. And
What determines the price of a goods in a market economy？
A. The cost of all elements of its production.
B. The cost of not making other goods.
C. The efficiency of the manufacturing process.
D. The quantity of materials supplied.
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