Answer:
'subject to fits of fantasy': an imaginative and unrealistic idea.
'take my chance': grab the opportunity and make the most out of it.
'a narrow escape': a barely successful escape from a posit danger.
Explanation:
"Raymond's Run" is a short story penned by Toni Cade Bambara. The story is narrated from Hazel Parker's (a.k.a Squeaky) view.
The idioms are words and phrases that are used as a form of expression conveying the meaning other than the literal one.
The meaning of the given idioms are listed below:
