-방학 어땠니?

How is the vacation? --> How was your vacation? 

=> Another way: Your sentence is okay and this is another way of saying it.

​

-멋졌어.

It's cool. --> It was wonderful.

=> Another way: Your sentence is okay and this is another way of saying it.

​

-코를 풀다

Sniff a nose --> blow your nose

=> Corrected vocabulary.

​