If she were I, she would have accepted the prize if she had won it.
were, I,she would have accepted the prize if she had won it.
was, I, she would have accepted the prize if she had won it.
were I she would have accepted the prize if she had won it.
had I she would have accepted the prize if she had won it.
Explanation:
Correct Answer is: were, I,she would have accepted the prize if she had won it.