— Mary, whose photo is it?—It ______ be Lu’s. Those are her parents.
— Are the visitors all from ? — No, there are only 5 in the group.
—Wish you good luck in this English exam.—_______
—Is that girl in red Sally?—No, it_______ be her. She has gone to Hong Kong.
It’s winter now. We should stay away from cold _______doing sports every day.
—You look very happy, why?—I have got _______ “A” in the math test.