The job of a hotel manager is not easy at all,_______ _______?（完成反意疑问句）

The job of a hotel manager is not easy at all,_______ _______?（完成反意疑问句）
The job of a hotel manager is not easy at all,_______ _______?（完成反意疑问句）

The job of a hotel manager is not easy at all,_______ _______?（完成反意疑问句）
is it?

isn't it