先通读下面的短文，掌握其大意，然后从A、B、C、D四个选项中选择可以填入空白处的最佳答案。

    John is 70 years old．He likes smoking (抽烟)．He smokes 10 cigars(雪茄烟)a(n)1 ．

    Today，he feels(觉得)bad，So he goes to see a2 ． The doctor looks at him and says."You don't3medicine(药)．Go to a relaxing place and live there4a month，go to bed early,5a lot and just smoke one cigar a day,and then you will feel better．"

    Soon John goes to a small6and lives there．

    A month later,the doctor sees7and says，"I'm glad to see you．You look very 8"

     "Oh,Doctor,"says John．"I feel healthy now.I'm having a good time．I go to bed 9 ． I walk a lot．10smoking one cigar a day doesn't make feel good．"