填空题

Humans are social (11) . They like to live and work in groups, and therefore, they form couples and families, villages and cities, work groups, teams, and other (12) . Language is the "cement" that holds these social groups together. Through language we can (13) ideas and experiences. Our brain think in symbols--words and sentences--as well as in the images that we (14) from our senses. Thus we can turn experiences into symbols and communicate with other people through the use of language. Language enables people to (15) ideas from group to group and from generation to generation.