试题题干
Word Formation
Complete the following sentence with the proper form of the word in the bracket.
(rich) Overseas students from a wide range of countries provide the opportunity to exchange ideas and experiences，and 
the intellectual and social life of the school.
参考答案
试题解析
此处缺少动词。
provide the opportunity to do sth. :提供机会做某事。
and是并列连词，所以空格处要写动词原形，所以变rich动词enrich。
句意：来自不同国家的海外学生提供了交换思想和经验，丰富社会生活的机会。