I think the answer is commas.
Answer:
The correct sentence is At the student assembly, the principal addressed the senior students to create a peer tutoring program for the struggling freshman algebra students.
Explanation:
A simple subject is probably the most basic unit in sentence construction. A subject is a noun, which is a person, place, thing, or idea. A subject tells us who or what the sentence is going to be about. Without a subject, we cannot have a complete sentence. A simple subject is a subject that has just one noun as the focus of the sentence. This means that only one noun does the action, or connects, to the verb of the sentence.
They demonstrated their values by enduring all the hardships and holding together, in spite of bad conditions. The disease and hunger struck them even the first winter. Many people died from starvation or illness, and the only seven people who didn't get sick took over all the work that needed to be done. They never complained, but praised God and patiently waited for the temptations to end, while diligently working all the time.
