Answer:
1. put charger in the plug.
2.connect the phone to the charger.
3. leave the phone alone until fully charged.
Answer:
no I do no think it contains a comma splice
Overall, this sentence seems correct to me.
Dear Teacher,
I am super sorry on how i have behaved in your classes. I am ashamed of what I have done. I am sorry that I was always late to class. Starting from when you read this letter, I will start following all the rules of your class just like all the other students. I would love if we can start our relationship over and get to know each other again, from the right foot.
Love
your soon to be fav Student