A: Hello, this is Mary. B: Hello, Mary. It’s Carl. Listen, I just tried to call your office but you weren’t there. I’m (1)_______ I can’t (2)________ it for lunch today. A: OK. How about later today then? (3)_____ 5 o’clock? B: I really don’t think I can. One of my clients said it’s an emergence. I (4)__________ go and check it out. A: No problem. I understand. I’ll see you next week. B: Thanks. Bye.