[解析]
C 15.B 16.B 17.C
【原文】
M:Susan,er…did I tell you about the party?
W:Party?What party?
M:Well …er …you see,there's a tradition at the college.When a teacher there buys a house he has to ...he has to...
W:Has to have a party?Is that what you're going to say?
M:Yes,I'm afraid so.So we need some beer and wine and cheese for tomorrow evening.
W:What?Tomorrow evening!Why didn't you tell me this sooner?
M:Well ...I suppose I forgot.I'm terribly sorry.I really am!
W:Oh,well,I suppose if we have to have a party,we have to.How many people did you invite?Only nine or ten,I hope.
M:Er …more than that,actually.I had to invite all the teachers and not just some of them.I had to!
W:What?Are you mad?It isn't just beer and wine and cheese we need.We need much more than that!Much more!
M:I don't understand.What do you mean?
W:We need a bigger house!