-- Is that girl Susan?-- It ______ be her. She left for Beijing yesterday.A. needn't B. can't C. mustn't
—Whose is this blue sweater?—It ___ be Hong Tao’s. His is white.
The local people like hat restaurant because it ___ both delicious food and good service.
You’ll miss the bus ___ you walk more quickly.
—He has 2 friends. One is a driver,_______ is a doctor..
— ____ will your father be back? — In a week.