45．A．satisfy                    B．surprise                  C．please                    D．encourage

44．A．change                   B．break                      C．leave                      D．win

43．A．excitement             B．enjoyment              C．agreement              D．achievement

42．A．past                       B．over                             C．after                             D．before

41．A．effort                    B．energy                   C．speed                     D．value

40．A．racing                    B．race                       C．raced                     D．to race

39．A．sure                       B．ready                     C．tired                             D．sorry

38．A．whether                  B．why                       C．when                     D．where

37．A．ran                        B．moved                    C．came                     D．rushed

36．A．lived                     B．got                        C．met                       D．passed