As requested, here is the translation:
Teacher: I will have a competition for best drama
Boy: no need for a competition. I will win for sure
Kim: i'm confident that the award will be mine
Boy/Kim: mine .. Mine
Teacher: what did you say Cha-em?
Kim: I will write a drama about a rich girl, becoming a servant.
Teacher: you have to be able to understand more about being a servant
Kim: I will become a servant ka.
Kim: sawatdee ja. Is this jarern's house?
Mark: you are so used to lying. Isn't that right, Cha-em?
Mark: I will tell everybody the truth.
Gg: mom, you have to fire Cha-em