Take ________ look at previous college entrance exam papers, and you will know what is ________ nature of the test．

1. A.
   a;/
2. B.
   the; the
3. C.
   the;/
4. D.
   a; the

Take        look at previous college entrance exam papers, and you will know what is     nature of the test.

       A．a; /                     B．the; the                C．the; /                   D．a; the