题目内容：

听下面一段独白，回答以下小题。

1.Whose pet dog was the guide dog in 1918?

A. Dorothy's.    B. A soldier's.    C. A doctor's.

2.Where did Dorothy go to learn about the guide dogs?

A. Germany.    B. America.    C. England.

3.How long does it take to train a little dog to be a guide dog?

A. 14 months.    B. 4 months.    C. over 2 years.

4.What will the listeners do next?

A. Teach dogs to be guides.    B. Visit the center.    C. Introduce their pet dogs.