415. It is the school officials who are in the best position to decide which subjects would provide the breadth and balance of a good curriculum for all students.
本句利用it is...that/who...的强调句型突出school officials的职能。in the best position指“处于最好的位置，最有资格做某事”。连接代词which引导的名词性从句作decide的宾语。
It is interpersonal skills rather than professional skills that count in your career.
It was not until he arrived at the station that he realized he had left his tickets at home.
It was lack of money，not of effort，that defeated their plan.