Why do you go to the store？

Because I want to buy some salt.

Why is she so sad？

Because she lost her cat.

Why do they keep running？

Because they want to win the race.

Why are you so busy？

Because we have a test this week.

Why are you late for school？

Because the bus is late.

Why do you like English？

Because it’s interesting.

Why does he like pandas？

Because they are cute.

Why are you looking at me like that？

Because your dress is a little strange.

Why can't you just keep quiet？

Because I am so excited right now!

Why did you quit your job？

Because I wanted to pursue a better opportunity.

这些例子展示了"why"作为疑问副词用于询问原因或理由的用法，并且每个回答都使用了"because"来引导原因状语从句。