6.Lin Miaoke performed well _____she was chosen as a little actress by director Zhang Yimou.

A. even if           B. so that               C. as if          D. in order that
7. – Could you tell me his phone number?

  -- _______ the phone book and find it out yourself.

  A. Look up      B. Search for     C. Refer to     D. Going through

8. Samuel Clemens, _____ Mark Twain, because a famous American writer.

  A. was known as     B. known as      C. was known for    D. known for