Quizzing Live

A,Ab,O What Is Missing

Answer:
B (Blood Groups)
What Was Unique About The 1969 Eurovision Song Contest Winners?
What Is The Meaning Of The Term Julienne?
Which American Wrote The Classic Native Tale 'The Legend Of Sleepy Hollow'?
Who Was The Youngest Player To Play For England In The 20th Century?
Which Country Has The Internet Domain .Me?
Which Substance Has The Chemical Symbol 03?