Explicación:
Claro, aquí están las oraciones completas con el verbo correcto:
My grandfather is in the garage.
Stephanie is in the mall.
They are in the school.
The boys are in the park.
Mary and Chen are in the school.
I am in ninth grade.
He is a good student.
It is an eagle.
Susan, Jossiel, and I are good friends.
Recuerda que el verbo "be" cambia dependiendo del sujeto de la oración. Se usa "am" con "I", "is" con "he", "she", "it" y nombres singulares, y "are" con "you", "we", "they" y nombres plurales.
