—Both of the skirts are in style this year. —Yes, but I think the green one is .
— 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 _________.