Translation:
Eren: Huh? You’re leaving now, dad?
Father: Yes. I’m off to town for a couple of examinations.
Mikasa: Eren said…
… he wanted to attend Bronycon…
Eren: Mi… Mikasa!! I told you to keep that quiet!
Mother: Eren!!
What are you thinking!?
Did you forget that you won’t be able to do anything there with your middle school level English!?
Eren: I know that! But if I’ll be around fellow bronies words won’t be necessary!!
Mother: Are you retarded?