先通读下面短文，掌握其大意，然后从各小题所给的A、B、C、D四个选项中选出最佳答案。

    We all think eating fruits means just buying fruits, cutting them and putting them into our 1. It's not as easy as you think. It's important to know 2 and when to eat.

    Fruit should be eaten on an empty stomach. If you eat fruit like that, it will go straight 3 the stomach into the Intestines（肠道）. It will be good to your health and provide you with plenty of 4 for life activities. Fruit is the most important 5.

    But when you eat two pieces of bread and then some fruit, it is 6 from doing so. Do you know the reason?

    You have probably heard people saying –every time I eat watermelon I burp（打嗝）, when I eat a banana I feel like 7 to the toilet. When the fruit 8 with other food, it produces gas（气体）. That's why you will feel uncomfortable. Actually, we will not 9 if you eat the fruit on an empty stomach.

    Eating a whole fruit is better than drinking the juice. When you 10 want to drink fruit juice, drink only 11 fruit juice, NOT from the bottles or cans. Don't drink juice that has been 12 up. Don't eat cooked fruits because you don't get the nutrients（营养成分）at all. You only get the 13.

    If you have mastered the 14 way of eating fruits, you have the 15 of beauty, health, energy, happiness and a long life. Dark circles under the eyes will not appear.