if you do not toeing the line ,you are not going to graduate.the student thought they would not have to do all the homework ,but the teacher made them toe the lie
參考答案:toe the line:
服从,听从
例句与用法:
1. I've told my children they must toe the line with regard to house rules or lose some of the freedom they presently enjoy.
我告诉孩子们必须遵守家规，要不他们就会失去目前享有的某些自由。
如果你不服从，你就不能毕业，学生认为他们不需要做所有的家庭作业，但是老师让他们不得不服从！
