i have done my homework today.
1) I havent done ...
2) Have you done ....
3) What have you done today?
4) When have you done you homework?
5) Who have done homework?
My friend has got a dog.
1) My friend hasnt got a dog
2) Has your friend got a dog?
3) What has your friend got
4) Who has got a dog?
5) Whose friend has got a dog?