How to deal with annoying teachers<br>Ask them what they are looking for. If your teacher is a hard grader, try to get more details when they give an assignment. Ask if there is anything specific they are looking for, and if there's anything you should avoid.
Assignments are the only way to know hard grader teachers.
This can not be inferred from the passage albeit showing possibilities of being either correct or incorrect. 
( z1 way :mod ( z2 only ) :manner-of ( z3 know :ARG1 ( z4 person :ARG0-of ( z5 teach ) :mod ( z6 grade :ARG1-of ( z7 hard ) ) ) ) :domain ( z8 assign ) )