Do you make friends 61 (easy)? Do a wall-sit test and you’ll find out. Researchers at the University of Oxford did 62 study with 101 participants aged between 18 and 34. Participants first 63 (fill) out questionnaires about their social lives, and they were then asked 64 (press)against a wall with their 65 (knee) at right angles(直角)for as long as they could, 66 can be really painful. The results showed that the longer participants held the position, the bigger 67 outer network---or distant friends they contacted once or twice a month—was. That was 68 the brain’s painkilling system is associated __69 both pain tolerance and social bonding, which means that the more active this system is, the 70 (good) you are at both.
答案:61.easily 62.a 63.filled 64.to press 65.knees 66.which 67.their 68.because 69.with 70.better