很高兴能够在这里回答你的问题：
1) I can see eight rubbers in the box.
(How many rubbers ) can ( you) in the box?
2) My father is fine today.
(How is) your father today?
3) Liu Tao is playing football in the playground.
(What is )Liu Tao (doing) in the playground?
4) The films were on the ground.
(Where were )the films?
5) The girl with big eyes is my sister’s friend.
(Who's your sisiter)?