题目

It’s not just adults who have a thing or two to discuss with other people, babies too have their own social lives and enjoy group interaction, according to a world-first study.The breakthrough study conducted by psychologist Professor Ben Bradley, at Charles Sturt University, could completely transform the way child-care centres are set up. In their study, the researchers examined groups of nine-month-old babies in New South Wales and Britain.And they came across astounding(令人吃惊的) results. It was found that infants had “social brains” and focused not just on their mothers but oThe Chinese people _____hard-working and brave. A．are B．is C．has been D．are being