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No, not that it makes any sense to do so. The Report Card is just a report. The actual grades are submitted through another system and recorded there. Changing the report card does nothing to change the grades reported.
You must get good grades in order to get a good report card. Idiot.
You Study more
By studying harder
doing extra credit and get good grades after that report card
What you feel is the best that you could do
All b
Do extra credit, or if possible, ask to rewrite a test or assignment to get a better grade for your report card.
Bad grades
After the marking period ends they show it at the report card..
Go to summerschool, and follow the teacher's directions. He/She may make up for those bad grades and change them to the grades you want.
The boy was very discontent with his report card grades.