Если бы не ее отсутствие на семинар

Если бы не ее отсутствие на семинаре,она бы легко справилась с домашним заданием

Результаты (английский) 1:

If not for her absence at the seminar, it would be easy to deal with homework

Результаты (английский) 2:

If it wasn't for her absence from the seminar, she'd have done her homework easily.

Результаты (английский) 3:

If it wasn't for her absence from the seminar, she would have handled her homework easily.