根据句意,选择正确的单词。
A. he B. she C. man D. woman E. brother
( ) 1.—Who’s that ________? —He’s my father.
( ) 2.—Is ________ your sister?
( ) 3.—Is he your grandpa? —Yes, ________ is.
( ) 4.—Who’s that ________? —She’s my grandma.
( ) 5.—Who’s that boy? —He is my ________.