--Listen! Is Tom singing in the room? -- No, it ______ be Tom. He has gone to Paris. A. mustn’t B. needn’t C. can’t
They went out for a walk at night, _______ ?
---He never stays up late at night, _____ he? ---_________. He usually does his homework till midnight.
--- He’s never heard to sing a pop song so loudly,_____ he? --- ___________. He is so shy.
— paper cutting used during the Spring Festival? — People usually put them on doors or windows.
---_____ you at home last Friday? ---No, I _______.