听力原文:W: Good morning, I am calling to inquire about your book shelves. M: Yes, what would you like to know? W: Well, I'd like to check the size first. M: The standard point is 3.2 meters wide, 1.8 meters tall and 30 centimeters deep. W: Thanks. That is the dimensions I need.' How about the colors? M: We have 4 colors, white, black, brown and grey. W: I think brown is OK, what about the charge of the delivery? M: Well it depends on how far you are from our factory? W: We are about 5 miles from your factory. M: I see. That is our free delivery area. (18)