Questions 8 to 10 are based on the following conversation. At the end of the conversation, you will be given 15 seconds to answer the questions.
Now listen to the conversation. What does the man mean to illustrate through the example
A．Badly-educated people are careless in their speech. B．The English language is being degraded. C．Well-educated people are more likely to err. D．Well-educated people are going to the dogs.