Did my friends play football in the yard yesterday?
Who played football in the yard yesterday?
Where did my friends play football yesterday?
When did my friends play football in the yard?
What did my friends do in the yard yesterday?
My friends played football in the yard yesterday, didn't they?
Did my or your friends play football in the yard yesterday?
Did my friends or relatives play football in the yard yesterday?
Did my friends play football or basketball in the yard yesterday?
Did my friends play football in the yard or in the street yesterday?
Did my friends play football in the yard yesterday or 2 hours ago?