The training won't stop until the players reach the point ________ they can perform accurately．

1. A.
   that
2. B.
   where
3. C.
   how
4. D.
   when

The training won’t stop until the players reach the point _____ they can perform accurately.

　 A. that　　　　　　 B. where　　　　　　 C. how　　　 D. when