短文改错

We had guests last night who have not stayed in a B＆B hotel ago. They did not want breakfast because that they were going out early in the morning. They came back lately and had some tea. I came into the riving room and saw one of them just go through the kitchen door but turn on the light. He was looking for a glass the cupboard. He had no ideas that the kitchen was not for guests. I just smiled to me and thought, “What can I do？ We are guests after all.”