A、To preserve it longer. B、To give it a particular taste. C、To make it smoother. D、To increase the nutrition. B选项均以不定式开头以及选项中的ta

W: I’ve been reading about new healthy snack food. It’s made from fish. Have you heard anything about it?
M: No, I haven’t. But I don’t like fish very much anyway.
W: Don’t worry. Although it’s made primarily from fish, it actually doesn’t have a fishy taste. In fact it can be flavored with tomato, cheese, or chocolate for instance.
M: Do you know how this snack food is made? How could it not taste fishy?
W: First, the fish is cooked, then water and flour are added to make a paste.
M: It sounds awful.
W: Actually the paste is flavorless. The flavorings are added to give it some taste.
M: Well, it still sounds a little strange. But I suppose this product will at least be low-calorie and high-protein, like health food.
W: Yes, you could call it that. And it has a long shelf life, so it won’t spoil quickly. It is also easy to digest and can be made from types offish that usually aren’t eaten or from high-grade fish by-products.
M: Urn.. .Have you got any sample? I might be willing to try cheese-flavored variety.
W: No. None of these seems to be available yet. As I understand it, this fish snack food probably won’t be in the stores for another couple of years. So you have a while to get used to the whole idea.
M: A couple of years? It may just take me that long, but thanks for telling me about it. .
Questions 13 to 15 are based on the conversation you have just heard.
13. Why are flavorings added to the paste?
14. What would be a good reason for buying the product?
15. When will the new product be available?