一Look! That teacher is explaining something to her students again and again!
一 teacher she is!
A. How patient
B. What patient
C. How a patient
D. What a patient
网友回答
A. How patient
B. What patient
C. How a patient
(答案→)D. What a patient
解析：本题是一个感叹句，关键词是老师，为名词，感叹句的结构是what+……+名词，若名词为可数名词单数，在修饰词前还要加不定冠词a或an，故本题选D，how+形容词或副词。