Question

【题目】— Mary, do you know _________?

— Oh, he is a doctor. I once went to him to fix my teeth.

A.where John is fromB.how John is doing

C.who John isD.what John is

Answer 1

【答案】D

【解析】

句意：玛丽，你知道约翰是做什么工作的吗？哦，他是医生。我曾经去他那儿修过牙。依据文中他是医生可知是询问职业。what be sb？是询问别人职业的句型之一。Mary, do you know _________? know后接的是宾语从句要用陈述句的语序， 故选D。