Ángel David Lerma Carrera
Hey, Bob. What’s up? Could you come here tomorrow? Can I ask you a favor?
I would like a coke, please.
I’m so sorry. I can´t be there now.
Mom, Could Sam go to the party with me tonight? No, he can´t. He has an exam tomorrow.
You can come with us if you want. I would like that, thank you.
Could I have the pasta, please?
Do you want to travel with me in July? I would like that, but I can´t go in July. My vacations are in December.
Dylan leonardo
i think that you have been wrong in the 5 line, because could is more formal than can, and hi's talking with him mother
Kevin Correa
Hi, Ángel. In the first one say "Hey, Bob" and "What's up" that is very informal, so I think is most logical to continue being informal and say "can", don't you?