When asked to explain he does to make his students so fascinated with his lessons, the te

When asked to explain he does to make his students so fascinated with his lessons, the teacher paused and thought deeply.
A. what it is that
B. that what it is
C. what is it that
D. that what is that

(答案→)A. what it is thatB. that what it is C. what is it that D. that what is that解析：考查强调句。本题考查强调句的特殊结构：特殊疑问词 + is + it + that + 从句，名词性从句用陈述语序，选A。

我也是这个答案