One Question Per Page false false Sorry, can I borrow your pen? I need to write something down. 3 Is it OK if I close the window? It's getting a bit cold. 2 I'm afraid I'm busy today. Can we meet another time? 3 Could you help me with this exercise? I don't understand it at all. 1 Can I carry that black bag for you? It looks heavy. 1 Sorry to interrupt, but can I ask a quick question? 2 Have you ever forgotten your wife's birthday? Was she angry? 1 How long have you known Niko? Is he an old friend? 3