I would say that is False. Hope this helped :)
I guess that all you have to do is focus, don't procrastinate. Shut off anything that might distract you, like put away your phone. Don't even listen to music, because sometimes that just breaks concentration. Considering how you've been trying to study for the past 2 hours, try taking a break. And continue to take short breaks so you don't get too tired!
I hope this helped haha! I've had far too much experience with the same issue.
The best time to determine voice & tone in writing is when you are in the beginning/middle of the passage/book/article because you will see what the author is going to talk about and then how he feels about it.
