Can you please check these few sentencens, please?

Question

I went to John yestarday. OR I went to John's house yesterday.
Leave the school and cross the street. OR Go out of the school and cross the street?
I'd like cod (not a cod) with carrots.
The bus trip lasts (or will last) two hours.
a two-pack of yoghurt (with hyphen?)

Thank you

Answer 1

I went to John's house yesterday,
Leave the school and cross the street.
I'd like cod with carrots.
The bus trip will last two hours.
A two-pack of yogurt.

Answer 2

Did you go to the person (1) or to his house? (2)

Leave the school

Yes, not the one in parentheses
hyphen, not necessary because those 2 words are not modifying the noun

Sra