Though Jack was poor and sick, he never ______ any chance to write. That is why he finally became a successful writer.

       A. agreed to       B. gave up      C. looked for       D. thought of

Though Jack was poor and sick, he never ________ any chance to write．That is why he finally became a successful writer．

1. A.
   agreed to
2. B.
   gave up
3. C.
   looked for
4. D.
   thought of