Question

—Alice, do you know     ?

—I’m not sure. Maybe he is a doctor.

A.what the man with a medical mask is

B.what is the man with a medical mask

C.who the man with a medical mask is

Answer

A

【解析】

句意：——爱丽丝，你知道戴医用面罩的那个人是做什么的吗？——我不确定。也许他是个医生。

考查宾语从句。what the man with a medical mask is戴着医用口罩的人是做什么的；what is the man with a medical mask戴着医用口罩的人是做什么的；who the man with a medical mask is戴医用面罩的人是谁；根据句意理解可知，这里是宾语从句，首先按照“宾语从句必须用陈述句语序”的原则，排除B选项，再由后面的回答Maybe he is a doctor.可知，这里说的是职业，英语中用what提问职业，故选A。