— I wonder ______ it takes to be a good teacher beyond patience and a great knowledge of students.

A. how is it that B. how it is that

C. what it is that D. what is it that

【答案】C

【解析】

试题分析：考查宾语从句。句意：-Blair，怎么了。-我想知道想成为一名好的教师除了耐心和了解学生之外还需要什么？宾语从句需用陈述句语序，本题中what引导的宾语从句，what作is的表语。