Ниже даже местоимение неверно написали.
По-моему:
1)Did he play football last Saturday? -Yes, he did.
2)Did she help her Mum yesterday?
No, she didn't.
3)Did Mike help you with your homework?
Yes, he did.
4)Did Lisa go to school yesterday?
Yes, she did.
5)Did you do your homework?
Yes, I did