What is the topic of the talk？A．American society.B．Life of American farmers.C．Agriculture

What is the main topic of the talk？A．The care and proper selection of dogs for family pets

What is the main topic of the conversation？A．The dances of a Native American dance troupe.

What is the main topic of the passage？A．The mechanics of rain.B．The climate of North Ameri

What is the main topic of the talk？A．What to do in case of illness.B．Suggestions for impro

What is the main topic of the conversation？A．The development of the automobile.B．Declining

What is the role of the 3rd paragraph in the development of the topic？A．Giving supportive