1、Privately, they notified illegally polluting factories of their failing grade and gave them six months to clean up.

2、She didn't hand in her first two assignments for chemistry, which started her out in the class with a failing grade.

3、A university in Sichuan Province provoked protest among students after assigning them to advertise their colleges on social media over their winter holiday or face a failing grade.

4、The student's failing grades troubled his parents deeply.

5、The girl's failing grades troubled her parents deeply.