—Can you come on Monday or Tuesday?—I 'm afraid ________ day is possible.
— Shirley, I know you ___________ a book about China, Have you finished it?— Not yet. Maybe next year.
The food ________ because it _________ good.
He __________ when I go to see him.
Great changes __________ in China in the past few years.
My sister has learnt English _________.