Directions: In this section, you will hear a passage three times. When the passage is read for the first time, you should listen carefully for its general idea. When the passage is read for the second time, you are required to fill in the blanks numbered from 26 to 33 with the exact words you have just heard. For blanks numbered from 34 to 36 you are required to fill in the missing information. For these blanks, you can either use the exact words you have just heard or write down the main points in your own words. Finally, when the passage is read for the third time, you should check what you have written. Scientists at Cambridge University have used medical scanners to 1 brain features that identify someone as being a 2 "people person" or a wallflower. The scans revealed that people who most value the company of others have, on average, more 3 grey matter in two areas of the brain.These brain regions are 4 in what scientists call "reward circuits" for some of our most basic pleasures, such as sweet food and sex. Graham Murray, a 5 who led the study, said the findings may provide 6 to how humans came to be sociable beings.The brain may first have 7 to give us pleasurable 8 from eating and reproducing, and later 9 , he said. By unravelling the neural basis of sociability, scientists hope to learn more about medical conditions such as autism, 10 The technology may not find its way into company’s recruitment processes any time soon, Murray added. "Doing a brain scan might be going a bit far. 11