1) May i close the window?.......2) Can i use your camera,

1) May i close the window?.......
2) Can i use your camera, Bill?......
3) Can i have some ice cream?.......
4) Could i borrow your keys?.......
5) May i come in?.......
A) Im sorry, you can not/
B) Of course.We are glad to see you/
C) Yes, thats fine. It is a bit cold in here.
D) No way! you are always losing them.
E) Im afraid we dont have any.
F) Yes. Here you are.