B
You want to eat a piece of bread for your breakfast. Oh no! It's past its expiration date(保质期). Is it still safe to eat?
Before the expiration date, food is at its best quality(质量) and is good to eat. But is it unsafe to eat food after it reaches this date? Not necessarily(必然地).
If food is not kept at the right temperature(温度), it can go bad even before it reaches its expiration date. However, if it is kept in the right way, food can be safe to eat even after its expiration date.
For example, if your bread becomes dry after it reaches its expiration date, it is still safe to eat if you make it into breadcrumbs(面包渣). But if it tastes sour(酸的), you should throw it away. Cooking oil can last for quite a long time. But it is better to use it within three months after you open it. On the other hand, baby food must be used before it reaches its expiration date.
()5. What does food expiration date mean?
A. It is the date when the food is made.
B. After this date, we cannot eat the food.
C. Before this date, the food is at its best quality.
D. The food is unsafe after this date.
()6. Which of the following is true?
A. No food will go bad before its expiration date.
B. No food can be safe to eat after its expiration date.
C. Food goes bad easily if it is not kept at the right temperature.
D. Food won't go bad if it is kept at the right temperature.
()7. Where can you find this article?
A. In a storybook.
B. In a menu.
C. In a dictionary.
D. In a newspaper.
()8. Which is the best title for this passage?
A. Is it safe to eat after expiration date?
B. What is expiration date?
C. What food can we eat?
D. How to keep food fresh?

5. C
6. C
7. D
8. A