—Is that a girl swimming in the lake?
—Sory, I can't find out ___________ it's a girl________a boy.
A.if; and B.that; and C.whether; or D.either; or
—Is that a girl swimming in the lake?
—Sory, I can't find out ___________ it's a girl________a boy.
A.if; and B.that; and C.whether; or D.either; or
C