It has been announced that candidates       remain in their seats until all the papers have been collected.

— I saw Mr Li at the meeting yesterday.— Did you? He _______ have attended it, for he had asked for sick leave.

---Have you heard of Wang Meng? ---Yeah, she ______ have done better. She won China’s first gold medal at Turin.

John ___ be a basketball player.He’s much too short.

I lost your address, otherwise I＿＿＿＿you long before.