精选优质文档-倾情为你奉上Unit 4 Study AbroadKey to ExercisesOpenerSuggested answers for reference1. Between the 2006/07 academic year and the 2013/14 academic year, the number of Chinese students at US colleges grew from 67,723 to 274,439, making China the single largest country of origin for all international students in the US.2. There are several reasons. For starters, Chinese families are better off now and can afford international study for their kids. Secondly, in this age of globaliza