This is a test of commonsense. Complete the next sentence:

How to prevent students from cheating
Don't allow access to test materials.
It is important to keep test materials secure before a test. This includes making sure that all copies and the original are accounted for after copying.
Some students may try to access test questions before a test, even if that means they have to break into your classroom or office to get them. To prevent this, never leave your keys hanging in the door and don't give them to a trusted student for any reason.