Joe: I see you’re busy right now, Sue. As soon as you 16 , I’d like to talk to you for a few minutes.
Sue: It’s O.K. Come on in.
Joe: Oh, no, I don’t want to interrupt you. I can wait. I’ll come back 17 .
Sue: I’m afraid it’s going to be a long wait! I’m working 18 my history paper.
Joe: History paper? I thought you’d finished it. 19 you turn it in on Friday?
Sue: Uh-huh. But the professor just returned it to me. I 20 to add 10 more pages.
Joe: Ten more pages! That’s a lot. How are you going to do it?
Sue: That’s what I’m trying to figure out. Now what can I do for you?
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