题目内容：

    It is a cold and dry winter morning. When you wake up, you suddenly feel that your_______hurts. You begin to sneeze（打喷嚏） and later you _______cough. You must have a cold! Wait a second. Could it just be a _______cold or the flu that’s been going around?

A cold gives you a runny nose and cough. But it’s usually easy to _______ . Some take medicine such as aspirin（阿司匹林）_______others try home treatments like herbal tea or chicken soup. Usually you will feel _______ after a week.

The flu on the other hand can be much more _______. It usually gives you fever. Sometimes it can be deadly. The worst flu, the so-called Spanish Flu of 1918 to 1919, killed about 50 _______people, according to The Atlantic.

Don’t worry. Getting a flu vaccine（流感疫苗）can _______ you from the virus（病毒）. Flu vaccines work by giving the body a small amount of flu viruses. This causes our body __________antibodies（抗体）. So next time you get the flu, the antibodies can help protect you.

    __________, the flu virus changes every few years. Therefore, there are so __________ types of flu, such as H1N1 and H5N1. The antibodies for one type of flu can’t protect us against all types of flu,  __________.        

However, good health__________ may also help to prevent a cold or flu. Washing your hands often helps protect you from viruses. Getting regular exercise and __________ healthy food are also important. All these can help you strengthen your immune system（免疫系统）.

1.A.stomach B.throat C.back

2.A.may be B.maybe C.may

3.A.common B.terrible C.serious

4.A.agree with B.deal with C.start with

5.A.because B.after C.while

6.A.better B.more C.worse

7.A.interesting B.familiar C.dangerous

8.A.millions B.millions of C.million

9.A.protect B.take C.separate

10.A.develop B.to develop C.developing

11.A.Unluckily B.Luckily C.Comfortably

12.A.few B.much C.many

13.A.though B.but C.however

14.A.hobbies B.customs C.habits

15.A.eat B.eating C.to eat