Where're the visitors? |
1. They're in the Guide Dogs _______. |
What is the guide dog used for? |
2. It helps people who can not _______. |
Who taught a dog to guide a person first? |
3. In 1918, a _______ taught his dog. |
What are the best dogs for the job? |
4. They are _______. |
What does the speaker mainly tell us about? |
5. _______. |