Django Rest Framework由PK过滤

I am new to Django Rest Framework and am trying to figure out how to properly filter by PK. I tried redefining query set, but it didn't work out. I currently have a Video class and have created several Video instances. Per Video instance I have a quiz and then quiz questions. When I go to list my quiz questions for a certain video quiz all questions that have been made for all quizzes are listed. I am new to Django Rest Framework and am trying