I believe from what I see that every sentence has been turned from present tense to past tense. One example could be Number 5- Instead of, 'Peter is going to take the package later.", it could be in past tense, as in Peter already took the package- "Later, Peter took the package."
Hope this helped. Let me know if you have any more questions!
<span> He immediately let go of </span>his<span> own, and fiercely attacked the other </span>Dog<span> to get </span>his<span> larger piece from him.</span>
Since 'sullen' and 'moody' mean almost the same, we should find a word that has a similar meaning to 'monotonous'. The word that has the closes meaning to it is 'repetitious', meaning 'tedious, boring, dull'.