a) A: Excuse me, can I buy stamps here?
B: Yes, you can. But you can't send your postcard, sorry. You need to go to the post office.
b) A: Can my son play tennis here?
B: No, he can't. But there's a sports centre in West Street - he can play there.
c) A: Where can we find presents for our friends?
B: You can go to that shop over there.
d) A: Can we get tickets here?
B: Yes, you can.
A: And can we pay by credit card?
B: No, sorry, you can't.