—It’s not easy _________Mrs White to persuade(劝说)her husband to stop smoking. He never listens to others.—Really? It’s stubborn ____________ him.
—Do you know _______ the girl in red is? —I’m not sure. Maybe a doctor.
All of us went to the park _______ Bob. He had to look after his sister at home.
Jim has _______ friends here, so he often stays at home and feels lonely.
—Is your ipad white, Mandy? —No, it isn’t. _______ is black.
—Do you know _______ man in jeans? —Yes. He’s a professor of _______ university.