— Mary, whose photo is it? —It ______ be
题型:选择题
问题:
— Mary, whose photo is it?
—It ______ be Lu’s. Those are her parents.
A.can
B.should
C.must
D.need
— Mary, whose photo is it?
—It ______ be Lu’s. Those are her parents.
A.can
B.should
C.must
D.need