Sometimes animals help people (  ) many ways. (                ), people in prison (

                                                   예를 들면                   관계사

  ) are (         ) keep pets sometimes become less n_______.

      허용된                                        불안한

 Animals also seem (  ) help people (   ) are sick or lonely. People in nursing homes showed great joy when pets were brought to them. They liked to touch the animals and talk to them, And they liked to talk to (            ) about the animals. One doctor

                                        서로

showed that heart p_______s (   ) o____ed pets lived longer than those (   ) didn't.

                    환자   관계사   =have, possess