Knock, knock!
who's there?
Boo
Boo who?
Don't cry, it's only a joke!
2 	Knock, knock!
who's there?
Earl
Earl who?
Earl be glad to tell you when you open the door.
3 	Knock, knock!
who's there?
Emma
Emma who?
Emma bit cold out here, will you let me in?
4 	Knock, knock!
who's there?
Howl
Howl who?
Howl you know unless you open the door?
5 	Knock, knock!
who's there?
Cargo
Cargo who?
Cargo beep beep!
6 	Knock, knock!
who's there?
Aardvark
Aardvark who?
Aardvark a million miles, for one of your smiles...
7 	Knock, knock!
who's there?
Cows
Cows who?
No they don't, they moo!
8 	Knock, knock!
who's there?
Albert
Albert who?
Albert you don't know who it is!
9 	Knock, knock!
who's there?
Twit2
Twit2 who?
You sound like an owl!
10 	

Knock, knock!
who's there?
Duey
Duey who?
Duey have to keep telling me Knock, knock jokes???