Напишете полную форму she isn't at school

Question

Напишете полную форму she isn't at school

Answer 1

She is not at school, если Вы про полную форму isn't.
Когда видите 't, то это обозначает not.
Например: can't - can not;
don't - do not;
doesn't - does not;
aren't - are not.

Answer 2

She is not at school.