Do you know PC is the short from of p____ computer?

Do you know what the ____ is today?-It's September 29th Do you know PC is the short from of p____ computer? I think 1847 is unusual,because Thomas Edison was born this year.Do you know him?He is one of th Do you know Life is very real do you know what--------(it)name is Do you know what this is? Where is home?Do you know? Do you know where is my angel? Do you know where it is ?是什么意思 Do you know who is she? Do you know what the answer is? Do you know where sugar is （? ） do you know what is my meaning? Do you know where sugar is 什么? do YOU KNOW WHAT IS ufo? Do you know what it is? do you know where suger is p--- Do you know who that American is