阅读短文，然后根据其内容，从A、B、C、D四个选项中选择最佳答案。

　　Nobody wants to be 　　1　　．Unfortunately(不幸地)our bodies can develop problems．When we aren't 　　2　　, our bodies tell us．Sometimes a part of our body hurts．When a part of our body 　　3　　, we say we have aches and pains．We can have aches and pains in different parts of the body．

　　We call some simple 　　4　　 problems“aches．”For example, we can have a headache, a toothache, an earache, a backache or a stomachache．Other simple problems are not 　　5　　 aches, so we describe them in different ways．For example, we can have a sore throat, a sore leg, a sore toe．

　　“Pain”is another word that we use to 　　6　　 a problem．We can have a pain in the chest, a pain in the shoulder or a pain 　　7　　 the back．A pain is strong．Also, a pain hurts in a specific place．

　　When aches and pains aren't too 　　8　　, we can buy medicine in the drugstore．Usually small aches go away quickly．When pain is more serious, we 　　9　　 to visit the doctor(or the dentist)．The doctor asks us what our symptoms(症状)are．The doctor may have to do tests or take X-rays to 　　10　　 what is wrong．Then he or she will tell us what to do．

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