Questions 4 to 7 are based on the
following conversation. At the end of the conversation, you will be given 20
seconds to answer the questions. Now listen to the
conversation.
According to this conversation, which is not included in order to live a longer life
A．To do exercise and keep a healthy diet. B．To follow the doctors’ advice strictly. C．To have more positive attitudes towards life and stay optimistic. D．To stay mentally active.