How many brothers or sisters you have?

A: Did you speak to Kim yesterday? B: Yes, I have.

Barbara does speaks German! She studied it in college.

How many times you have been to the USA?

Who did invented Twitter?

A: Who leave this note on my desk?  B: Sam did.

You're not on Twitter, __________?

I'm not, but you use Facebook, __________?

You've met my roommate Agata before, __________?

I think so. She's the one with the piercings, __________?

The boss is demanding a lot from you right now, __________?

Which statements are CORRECT or WRONG?