John : Do you know swimming? David : No, can you teach me how to swim?
John : Of course I can. Come to my place tomorrow at 5.00 p.m.
John asked David (a) ___________________. David replied in negative and asked him (b) _____ how to swim. John replied in affirmation and asked him (c) _________ the next day at 5.00 p.m.
Convert it into reported speech