Вставить слово: The children ... at home. They're in the playground. 1. are 2. isn't 3. aren't 4. is

The children aren't at home. They're in the playground. 3. aren't - "Дети не дома. Они на игровой площадке."

Глагол to be отличается от других английских глаголов тем, что при спряжении в Present Simple он полностью меняется.

I am We are

You are You are

He, she, it is They are

is not = isn't; are not = aren't.