阅读下面故事：

　　Chemists are usually the best people to read doctor's notes. But sometimes the doctors write so badly that even chemists can't make out what was written.

　　One day Mrs Smith wrote to her friend, who was a doctor, inviting him to have dinner with her family. A few days later she got a reply, but he wrote so carelessly that she couldn't read it. Her husband couldn't read the letter, either.

　　“What shall I do? ” she said to her husband, “How can we know if he is coming? And it's not polite to call the doctor and tell him that I cannot read his writing. ”

　　Her husband thought hard and then he got a good idea.

　　“Take it to a chemist, ” he said, “and he will be able to read it easily. ”

　　“That's great, ” shouted the lady.

　　So she went to the chemist's. The chemist looked at the note carefully.

　　“Wait a moment, please, ” he said politely, and went to the back of the shop. After ten minutes he returned with a large bottle in his hand. He gave the bottle to the lady and said, “ Take one spoonful before every meal. ”

根据故事，用第三人称口吻写一篇英语短文，短文应包括下列内容：

(1)Mrs Smith为什么写信给她的朋友？

(2)她朋友的职业是什么？

(3)她能看懂医生的回信吗？

(4)她的丈夫给她出了什么主意？

(5)Mrs Smith最后是否知道医生来不来与她家人共进晚餐？

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