The knee is the joint ______ the thigh bone meets the large bone of the lower leg．

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

The knee is the joint ____ the thigh bone meets the 1arge bone of the lower leg.

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

The knee is the joint ______ the thigh bone meets the large bone of the lower leg．

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

The knee is _________ most other joints in the body because it can’t twist without injury．

1. A.
   more likely to be damaged than
2. B.
   likely to be more than damaged
3. C.
   more likely than to be damaged
4. D.
   to be damaged more than likely