50．A．sent                     B．had                     C．sold                       D．received

49．A．inventions            B．rules                       C．mistakes                 D．changes

48．A．grow                    B．eat                      C．put                        D．cook

47．A．lent                     B．called                  C．returned                 D．showed

46．A．ideas                     B．skills                   C．names                    D．facts

45．A．kind                    B．honest                 C．helpful                   D．lovely

44．A．angry with           B．surprised at             C．tired of                  D．interested in

43．A．one                     B．another                C．other                     D．the other

42．A．gift                     B．book                   C．toy                        D．bag

41．A．owned                  B．found                  C．helped                 D．chose