I fail to see how it is her fault that you failed because of attendance problems... Try asking her anyone. There are two negatives that could happen: she says no, and no harm done. Or she writes you a crappy recommendation, and you throw it away and ask another teacher.
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So when you're happy (Hurray!), or sad (Aw!),
Or frightened (Eeek!), or mad (Rats!)
An interjection starts a sentence right.