听力原文：CLEO: Did you hear about the National Geographic survey of American students between the ages of 18 and 24? TED: Yes, it sounds as if they could benefit from study abroad—Did you know that only one percent of US students currently study abroad? Anyway, back to that National Geographic survey—it was carried out internationally—and it was Sweden that came out on top. CLEO: It's really amazing, isn't it; when given a map of the world, only 13% of American students were able to find Iraq and the same for Iran. TED: I know...and, not surprisingly I suppose...Afghanistan didn't fare much better—83% couldn't locate it on the map. There must be something about that region...76 % couldn't identify Saudi Arabia either. CLEO: But Asia didn't come off much betters-over half the students couldn't find Japan on the map! But do you know what's really incredible? TED: Yes, I do: 11% of them couldn't even find their own country! CLEO: It's no wonder the USA scored near the bottom, only two points above Mexico which was ranked last! Label the diagram below. Choose your answers from the box below and write the letters A-H next to questions 29-30. Countries