25、Though he started late. Mr. Guo played the piano as well as, if      ,  

A. not better than   B. not better           C. no better than    D .better

24、        parents say and do has a life-long effect on their children.

A. That                        B. Which                      C. What                       D. As

20、__________ the silence for the pauses, we could hear each other’s breathing and could almost bear

our own heartbeats.  

A. In            B. For            C. Under            D. Between

19、Polar bears live mostly on ________ sea ice, which they use as _______ platform for hunting seals.  

A. a; a            B. a; the           C. 不填; a            D. the; 不填

17、Emergency line operators must always         calm and make sure that they get all the information they need to send help.  

A. grow                       B. appear               C .become                    D. stay

16、Despite such a big difference in          towards what one eats, there is no doubt that people in the west regard the Chinese food as something special. 

A. point                        B. idea                   C. attitude                     D. sight