How was Sue able to leave school for holiday?

M: Hay, Sue! You have really been away for a long time. How did you do that?
W: Hi! Well, before I left, I talked to the teacher about the work I would miss. Besides, my aunt in Denver made me study a lot there.
M: I thought she was your rich aunt.
W: Not very. But she didn’t have any children to raise, so she did have some money, even though she is a teacher.
M: How was the holiday?
W: Hard to say. I saw a lot of people there on the mountain on Washington’s Birthday.
M: The beach here was full on Washington’s Birthday, too. It was really warm here, so a lot of people went swimming.
W: Well, we should have stayed at home that day. There were so many people. We took the train over the mountain, so at least we didn’t have to drive. It is a good thing we did—there were so many cars and buses, and no place to park anywhere.
M: Just like the beaches here.