<p>I am having issues with subject-verb agreement. Care to help (and differentiate)?</p>
<p>The President has designated Senator Frank as one of the Congressmen who are going to attend the conference on nuclear waste disposal. No error</p>
<p>The fire officials attributed the high casualty rate to the fact that not one of the more than two thousand rooms in the hotel were equipped with sprinklers or smoke detectors. No error</p>
<p>The first one is No error, while the second one is C (was equipped)...
How come the first one is plural when it is referring to the one Senator going with other people to the conference? (Senator Frank, along with other Congressmen, is going to attend...)</p>