---I’ve got to go now. ---Must you? I ______ you could stay for dinner with us tonight.
Timmy goes to school __________ every day . It’s 5 minutes’ walk from his home to school .
-Why not go to see the dolphin show with me? -Because I _______ it.
-Have you written anything on Chinese traditional food so far? -__________, but I have a plan for it.
-Excuse me, does Mr Smith’s son live here? -He _________ be here, but he has moved.
- Is your father in? - No, he ______ for three hours.