Eg: So how come you got an invitation and not me?

"I don't think I'll be able to go swimming tomorrow." "How come?"

Eg: How is it that he got the job and I didn't?

how is it that you are still here?

Eg: Can someone tell me the reason we use the present perfect here?

Eg: What's the point of talking to you? You never listen!

What's the point of studying math in school anyway? No one ever uses it in real life

Eg: Call you? What for? You never answer!

A: "You're both in deep trouble." B: "What for? We didn't do anything."

另外，what for還有表示懲罰，責備得意思

Eg: My grandmother wouldn't hesitate to give me what for when my parents weren't around.

The boss is quick to give you the what for if you make even a minor mistake.