—After P.E., I often feel very thirsty. —Why not buy some ________ to drink?
Twenty-eight and twelve
--Can I help you? -- . I want a red skirt.
These shirts only 5 dollars. Do you want ?
--Why don't you take this T-shirt, Linda?--I have only $10. I can't it.
--Does the bookstore math books?--Yes. Do you want to one?