题目类型：
单选题
题目内容
—Jane, what do you think of Mr. Green?
—As ______ teacher, he ought to set _______ good example to the pupils.
—As ______ teacher, he ought to set _______ good example to the pupils.
正确答案
B
题目解析
考查冠词用法。teacher和example都是可数名词，都应用冠词修饰。此处它们都不是特指，所以都用不定冠词。