One of our rules is that every student          wear school uniform while at school.

—Whose purple coat is this?—It ____ be Lily’s. Hers is red. It _____ be Lucy’s. She likes purple.

---Listen! Someone is knocking at the door. Who _____it be?---It _____be Tom. He phoned to visit me this evening.

They can hardly move at all, _____________?

— Must we finish all the exercises today? — No, you ________.You can finish them within two days.