Question

17.- .- Mrs. Leonor__(not/to be) at school. She(to be) working online.

Is - is

Not - is

Is not - is

Do not - is​

Answer 1

17.- .- Mrs. Leonor__(not/to be) at school. She(to be) working online.

Is - is

Not - is

Is not - is

Do not - is​

Respuesta:

Mrs. Leonor isn't at school.

She is working online.

Explicación:

Present continuous:

En este el verbo se le agrega -ing, por ejemplo: playing.

Y el verb to be: en negativo es is->isn't, y en interrogativo puedes poner w question (what)+verb to be, o de frente verb to be (depende como quieres formular tu pregunta.