A man was selling medicine at a fair（集市）At first he sold bottles of a cure（药剂）for colds（感

A man was selling medicine at a fair（集市）．At first he sold bottles of a cure（药剂）for colds（感冒）for just a dollar a bottle．
Many people wanted to buy it and the man's young assistant moved quickly through the crowd collecting money and handing out bottles of the cure．
Then，when he had a big crowd， the man held up a very small bottle．
“And now，ladies and gentlemen,” he shouted，“Here is the medicine you have been waiting for．The cure for old age．Drink just one bottle of this and you will live forever.”
“And，ladies and gentlemen,” the man continued，“I'm not going to charge you a hundred dollars a bottle for this wonderful medicine．I'm not going to charge you fifty dollars a bottle．I'm not going to charge you twenty-five dollars a bottle. Now，ladies and gentlemen，I'm going to charge you just ten dollars a bottle. Think，my friends，for ten dollars you can live forever.”
Most of the people in the crowd did not believe this．
One person shouted，“If it can make you live forever，why don't you drink it?”
Then another person cried，“Yes，you look as if you're at least sixty years old．
“Thank you，sir，thank you,” the man answered，“I'm so glad you said that． My real age is three hundred and twenty-nine.”
The crowd laughed at this but there were still some people who wanted to believe the man. One of them spoke to the man's assistant as she passed by, “Is that true？”he asked．“Is he three hundred and twenty-nine？”
“Don't ask me,” the assistant said，“I've only worked for him for a hundred and fifty years.”
【小题1】What did the man sell at first at the fair？ A．a cure for coldsB．bottlesC．a cure for old age D．a medicine that made people live forever【小题2】How much did the man charge for the cure for old age？ A．one dollar a bottleB．twenty-five dollars a bottle C．ten dollars a bottleD．fifty dollars a bottle【小题3】What does the word “assistant” mean in this passage？ A．仆人B．朋友C．同伴D．助手【小题4】What does this passage really mean？A．The cure for old age is very useful and not so expensive． B．The man is not honest，and neither is his assistant． C．The cheaper the medicine is，the more people will buy． D．The two men are very honest，and they would like to help people live forever．A

(答案→)A 解析：【小题1】细节理解题。结合At first he sold bottles of a cure（药剂）for colds（感冒）for just a dollar a bottle（起先他卖一美元一瓶的治感冒的药）可知答案。【小题2】细节理解题。结合I'm going to charge you just ten dollars a bottle（我只打算卖一瓶10美元。）可知答案。【小题3】词义理解题。结合“其中一人当那个助手经过时问她，“他已329岁了，这是真的吗？”他问。”可知答案。【小题4】推理判断题。结合文章内容可买药的人和他的助手都是骗子。

这个问题我还想问问老师呢