Question

He has recently _____ chess to provide himself with some relaxation.

1. A.
   taken on
2. B.
   taken up
3. C.
   held on
4. D.
   held up

Answer 1

B
　take up开始从事。take on参阅Ⅲ，162,171注释。hold on, hold up参阅Ⅲ，162,171注释。