问题描述：
—Who’s that talking loudly in the next room?—I don’t know.Maybe __ is my mother.
—Who’s that talking loudly in the next room?
—I don’t know.Maybe ___ is my mother.
A.she B.it C.this D.one
—Who’s that talking loudly in the next room?
—I don’t know.Maybe ___ is my mother.
A.she B.it C.this D.one
问题解答：
我来补答展开全文阅读