Fill in the Blanks Family vocabulary exercisesOnline version Family vocabulary exercises by Judith López Cano 1 wife husband son daughter daughter sister son 1 . My sister is my father's . 2 . My brother is my mother's . 3 . My aunt is my mother's . 4 . My niece is my brother's . 5 . My nephew is my brother's . 6 . My sister - in - law is my brother's . 7 . My brother - in - law is my sister's .