问题补充：
It was at that school he realized his dream he was going to be a teacher.
A. that; which
B. that; that
C. where; that
D. where; which
答案：
A. that; which
(答案→)B. that; that
C. where; that
D. where; which
解析：考查强调句型和同位语从句。It was at that school he realized his dream把It was和 去掉后，剩下he realized his dream at that school，是一个完整的句子，所以是强调句型，由 that引导； he was going to be a teacher.是 dream的同位语从句，由 that 引导。所以选B。
