Here's why:
* Passive Voice: The subject of the sentence is receiving the action. The sentence focuses on what is being done, not who is doing it.
* Example: "The drafts are completed by the students."
* Active Voice: The subject of the sentence performs the action. The sentence emphasizes who is doing the action.
* Example: "Students complete the drafts."
To make the sentence active voice:
"Once students have completed their drafts, they should check to make sure..."
Let me know if you'd like to practice with more examples!