Miss Li came into the classroom ____ a smile _______ her face.
—Who is that young man ____?—He’s Jack, my brother.
—You’re thirsty(口渴). ____ have a glass of milk?—Good idea.
—Is Mr. Brown a good teacher?—Yes. He is kind ____ us. We love him.
—Is this a photo ____ your family? —Yes, it is.
—What does your father do?—____