B)请先阅读下面短文，掌握其大意，然后用方框中所给词的适当形式填空。每个词限用一次。
necessary yourself suggestion drink if careful make stop medicine serious
Hearing "cough, cough..." everywhere, it means the flu season is coming. The flu is more 1. ____ than the cold. But you can do something to 2. ____ it. Try your best to stay away from the people who are ill. When you are out, wearing a mask is one of the best ways to protect 3. ____ from catching the disease(疾病). After you come back home, you need to clean your hands with water 4. ____.
What are the symptoms(症状) of the flu? 5. ____ you have a headache, a cough or a fever, I am afraid that you might have the flu. Sometimes you will even have a high fever. Having the flu 6. ____ you feel terrible. Here are some 7. ____ to help yourself get better. First of all, you should go to see a doctor. The doctor will give you some 8. ____. Please take your medicine on time. Second, it's 9. ____ for you to have a good rest. Then, 10. ____ enough hot water will help you, too.
I hope all of you can be healthy.

1. serious；2. stop；3. yourself；4. carefully；5. If；6. makes；7. suggestions；8. medicine；9. necessary；10. drinking