阅读理解。

    Vitamins play an important role in people's health. Without them, your body cannot workproperly.

    Vitamin A helps keep your skin healthy and helps your eyes get used to the darkness. Good  sources of Vitamin A are deep yellow and dark- green leafy fruits and vegetables, such as carrots

and potatoes.

    Vitamin B helps keep your need for food and its absorption (吸收) normal. Milk products,  grain

products, and meat are good sources of B Vitamins.

    Vitamin C is found in many fruits and vegetables, such as tomatoes, strawberries, and cabbages. People who don't get enough Vitamin C for a long time injure easily.

    Vitamin D is called " sunshine"  Vitamin. Your own body makes it when you are in sunlight. It helps your body use minerals (矿物质) to build stronger bones and teeth. The oily fish is a good source of Vitamin D.

    Vitamin E helps increase the immune function(免疫功能). It can be found in foods such as  vegetable

  oils, nuts and seeds.

1. Enjoy the__________ and eat__________.

2. You should_______________________.

3. You'd better_____________________.

4．Why not______________?

5. You need to_______________.