Please check the following sentences.
(1) Just as she was exerting all her strength to dry the floor with a piece of rag, her boss came back to the office.
(2) Opening the door, he was astonished to see the mess on the floor of the office.
(3) The cleaning woman was embarrssed and was afraid that her boss might blame her neglect of duty.
(4) To her surprise, her boss didn't get angry.
or - back into the office
her for neglect