Why do you use al and del?

Al is a contraction of the two Spanish words a and el, and can mean many things, such as “at the” or “to the.” Del is a contraction of the words de and el. It can mean “from the” and “of the,” among other things. ... You'll never see a contraction with the other articles: la, los and las.

The answer is a it says that he/she will practice the interview in third head