вопросик

Добрый вечерок всем))) может у кого есть свободная минуточка проверить меня.... что-то я запуталась с этими временами(((((((( Благодарю

Open the brackets and use the verbs in the right tense form.

Yes, I’m at Georgina’s house this evening. What I am doing here? I am babysitting. She and her husband are going to a party. Four children. They are usually rather wild. I was babysitting here once when they all started screaming. But they are very good at the moment. I can see the youngest now in the room next door. She is eating a huge box of chocolates that Georgina had given me before she left. The others found a tin of paint and happily painted the walls of the kitchen. They assured me that they were doing this before and that their mother and father had no objection then. I only hoped that they had told me the truth. One of them got himself in a bit of a mess. I had tried to clean him up with paint remover, but so far without much success.