<p>"Participants in the club <em>have devoted</em> <em>themselves</em> <em>to informing</em> the public, through speeches and literature, about the ways in which physically challenged people <em>have contributed</em> to the success of our industry. NO ERROR?</p>
<p>I think it should be "to inform" instead of "to informing."</p>
<p>No error. "Devoted themselves to informing the public" is a little awkward but not actually wrong.</p>
<p>I second that answer: No error.</p>
<p>wooohooo
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