——What is the man over there?——I don’t know for sure. But I think he can be but a teacher

问题补充：

——What is the man over there?

——I don’t know for sure. But I think he can be but a teacher.

A. anybody

B. anything

C. nobody

D. nothing

答案：

A. anybody

(答案→)B. anything

C. nobody

D. nothing

解析：本题考查句子的意思和短语的用法：anything but的意思是“根本不是”；结合句子，可以这样理解：“我还不能确定他的身份，但我敢断定，他根本不是教师”。