What is the difference between "crazy" and "mad"? Can I use them in the same situations.

Die+ ing=? stay+ ing =? help me, please

What films or TV series can you recommend to watch in English? I want to find film which I understand( can translate). I tried to watch Doctor House, but it's difficult.

What is the difference between "have to" and "should"

What is skins? I tried to translate, but I think the translation was wrong. Skins is the name of tv serial about teenagers, if it helps you to translate the word.

Can recommend any exchange programs for students to America?