Questions 19 to 21 are based on the conversation you have just heard.

A．She seldom reads books from cover to cover.
B．She is interested in reading novels.
C．She read only part of the book.
D．She was eager to know what the book was about.

A．The care and proper selection of dogs as family pets.
B．Different breeds of dogs.
C．Responsibility for seeing that dogs are properly cared for.
D．Different kinds of books about dogs.