The grades came in a week ago (got an A-) and I emailed her informing her of the grade I received. Today she emails me back saying something to the effect of "I now have too many recommendations to write and cannot dedicate any more of my time to this so I cannot write your recommendation letters". I need her to write three letters of recommendation or I will not be able to apply to three of the eight graduate schools on my list. Is there anything further I can do?
更新1:
Another professor seems to have only completed the online recommendations and failed to mail out the paper recommendations. She received those nearly a month ago as well. How do I word a reminder that doesn't blatantly sound like "you forgot to mail them"?