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According to the text, to become economically successful (self-sufficient), the louisiana superdome, before finding tenants, had to earn between $26,000 and $35,000 in daily rental income. this is evidence that

What functions as a reflexive pronoun in the sentence the professor herself wanted to attend the conference, but it was cancelled when she and several other presenters had to excuse themselves

What is wrong with they follow citation of a book with two authors