story: Jen's teacher told her class to read for homework. She warned there might be a pop quiz. Jen decided she would read before class. When Jen got to class, she did not have time to read. Her teacher gave a pop quiz and Jen did not know any answers.
 selected sentence: When Jen got to class, she did not have time to read.
Jen gets to class late >Causes/Enables> Jen doesn't have time to read before class