49.A.because             B.for                            C.since                         D.because of

48.A.dry                   B.strong                       C.wet                           D.old

47.A.to take                     B.to cut                        C.to water                    D.to pull

46.A.got up               B.made the bed             C.played piano              D.washed her face

45.A.other                B.place                         C.two places                 D.another

44.A.happily             B.brightly                     C.carefully                   D.usually

43.A.but                   B.and                           C.for                            D.or