Would you please explain＿＿＿you do to make .your students so interested in your lessons?A.

问题补充：

Would you please explain＿＿＿you do to make .your students so interested in your lessons?

A. what is it that

B. that what is it

C. that what it is

D. what it is that

答案：

A. what is it that

B. that what is it

C. that what it is

(答案→)D. what it is that

解析：句意：你能不能解释你做了什么让学生对你的课这么感兴趣？这里使用了强调句做为宾语从句，所以语序应该是陈述句，排除AB项，因为强调句的特殊问句的构成是：特殊疑问词+is/was+that …，所以C是不对的，选D。