Что нужно вставить? it is fair to think that all children are silly.i can stay at home alone.but some children look for (/entertainment) and have parties when their parents are away.then the house is very (/messy).these children can,t stay alone.and i think you should be older than 10 and care about your (/safety): know how to use (/dangerous)things like a gas cooker.here is my advice-do not open the doors to strangers and keep the house(/untidy).