Zephyr is an 8-year-old yellow dog.She walks in a school and even goes to class with students at school in Texas，US.
    This school has a guide dog （1）

training

training

（train） program.It started two years ago.Zephyr is one of the many dogs that the program trains to help the （2）

blind

blind

.In this program，students first work as dogsitters（保姆）that take （3）

care

care

of dogs.They receive training in Guide Dogs for the Blind，the （4）

largest

largest

（large） guide dog school in North America.They help to look after the dogs for a while before getting a dog of their （5）

own

own

.Then they start to train the dogs in different environments.The student trainers will work with the dogs （6）

mostly

mostly

（most） for one year.
    Izabella Harris joined（7）

the

the

program about a year ago.Zephyr is her dog.One morning，she and some other students trained their dogs to walk across the street.Zephyr was not （8）

allowed

allowed

（allow） to eat food on the ground.When the school bell rang（鈴響），the dogs followed their trainers to the next classroom，sitting or lying quietly between their trainers' （9）

feet

feet

（foot）.
    "I hope Zephyr will （10）

be

be

the eyes for someone one day，" Harris said.