Last summer we went to visit our granny.
Last summer we went to visit our granny, didn't we?
Who went to visit our granny lst summer?
Did we go to visit our granny last summer?
Did we go to visit our granny lat summer or yesterday?
Where did we go last summer?
When did we go to visit our granny?
Whom did we go to visit last summer?
What did we do last summer?