обьедените:
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 is
-------------------------------------------------a)I'm sorry,you can't
b)of course we'me glad to see you
c)yes,that's fine.it is a bit cold in here
d)no,way!you are always losing them
e)I'm afraid we don't have any