I thought to myself if i should tell them then or should i wait until they were in a better mood
Explanation:
In reported speech tenses change, present tense change into past and past change into past perfect. In reported speech now changes to then and that's the reason why I have made those changes
A topic that is both appropriate and narrow enough could be "Development of the party system". That topic could explain how the party system was created and how it influenced decision making and legislative processes throughout history.
Themes are normally centered around a concept that is not easily defined- TRUE
"Using an illustration, my science teacher explained how the weather cycle works. "
is correct.