<p>October 2007 Test
section 10.
12. Those enrolled in the leadership training courses have evolved into dynamic, confident managers from "an inexperienced and uncertain newcomer" just a month ago.</p>
<p>In this sentence, "an inexperienced and uncertain newcomer"is not correct because it does not match with "those."</p>
<p>However, I am not sure about the answer: "from the inexperienced and uncertain newcomers they were."
I think the number agreement is good, but I can't understand the expression, "they were."
Please think about this expression: "Those enrolled in the leadership training courses have evolved into dynamic, confident managers from the inexperienced and uncertain newcomers they were a month ago."</p>
<p>"How the clause, they were a month ago, can be related to the whole sentence?
Was the relative pronoun "who" in "the inexperienced and uncertain newcomer (who) they were a month ago omitted?
Then how can a subjective case relative pronoun be omitted?</p>
<p>Thanks in advance. And excuse me if this is too simple and easy question.</p>