Um..... no one can answer this.... because we didn't read the story.... but my answer is: He might not have seen his dad in a long time and he was scared to see him again. Or: He is just afraid. Sorry if this does not help.
<span>They developed the first mathematical system of painting perspective</span>
A quicklist is a prewriting technique which helps a writer to pick a topic from multiple ones the writer thinks of. The answer is:
<span>a prewriting technique to help choose a topic</span>
