Answer:
D By the time they arrived
Explanation:
A subordinate clause is a clause that is dependent on the main clause
By the time they arrived leaves us wanting more, what happened.
It is typically introduced by a conjunction.
The noun clause is <span>how the Aztecs made their astronomical calculations.
</span>Just invert the whole sentence - The subject of my next paper is <span>how the Aztecs made their astronomical calculations.
</span>The whole clause is used as the direct object.
Answer: President
Explanation: The position that requires you to be a natural born american citizen is "President"
