At home : Paul, a 9-year-old boy, i

At home : Paul, a 9-year-old boy, is talking to his dad.
Paul : Dad, I dropped your mobile phone on the floor.
I’m not sure whether it still works. _____________
John : Let me see. Oh! It’s still good. Don’t worry.
1) I'm so sorry. 2) It’s very strong. 3) I think it's too old. 4) Please buy me a new one.