单项选择题


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 shall we do according to the conversation

A.Put our three-year-olds together in day-care centers.
B.Put our 13-year-olds in schools and sports activities.
C.Put our 80-year-olds in senior-citizen homes.
D.Mix people of all ages together.