题目内容：

Do you often have a cold, headache or sore back? If your answer is “Yes”, your health is a problem. Healthy food is good for our health. Tofu is a kind of healthy food. It is also a traditional Chinese food. We often eat it in China. Now, many people in other countries think tofu is good for health, too. They also like eating it.

Milk is another kind of healthy food. You should drink one or two glasses of milk every day.

Vegetables are important, too. You should eat lots of them. There are vitamin（维生素）A, B, C, D, E and other vitamins in them.

Of course, it’s important to eat a balanced diet. You need some pork, chicken or beef every day. But you shouldn’t eat much of them.

根据短文内容，判断句子正（A）误（B）

1.If you often have a cold, headache and backache, you aren’t healthy.

2.Tofu is healthy food.

3.People only in China eat tofu.

4.To keep healthy we should drink some milk every day.

5.We should eat a lot of pork, chicken or beef.