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.
The answer is A. However. Hope this helps. :)
The answer is hyperactive.
The word hyperactive refers to extremely active or abnormally active. Hyperactive is the adjective form of hyperaction. Hyperactively is the adverb form. The work inactive refers to being not engaged or not working while the word reactive refers to the acting in response to a situation.
I think present particpile
