Question

--Do you have lunch at home?

--________.

1. A.
   Yes, I am.
2. B.
   Yes, I can.
3. C.
   Yes, I do.
4. D.
   Yes, I have.

Answer 1

C
考查以助动词do引导的一般疑问句的简单应答。以do提问，肯定回答时以do简答。