The life we were used to ____ greatly since 1992

The life we were used to ____ greatly since 1992 the life we were used to __ greatly since 1992 The life we were used to _____ greatly since 1992. the life we were used to______(change)greatly since 1992 The life we were used to ( )greatly since 1992.A.has changed 单项选择（说原因）The life we were used to _____ greatly since 1992.A The life we were used to（changing ）greatly since 1992. The life we were used to——greatly since 1992.Bhas changed Cc The life we were used to （）greatly since 1980.Ach the country life he was used to ----------greatly since 1992 The life he was used to( has changed )greatly since 1992, The life he was used to has changed greatly since 1992