问题补充：
It was not just the size of the school but it provides for us students made it unique.
A. that; that
B. what; that
C. what; what
D. that; what
答案：
A. that; that
(答案→)B. what; that
C. what; what
D. that; what
解析：句意：不是学校的规模而是它给学生提供的东西使得这个学校独特。这是强调句，还原成正常的句子是not just the size of the school but it provides for us students made it unique.这样可以看出是not …but连接两个主语，第二个是主语从句，主语从句没有宾语，用what引导，第二空填that，构成强调句。选B。
