Question

—An ant has two stomachs—one for itself, one for others.

—Really? Quite interesting. I ________ anything about it.

A．don't know

B．have known

C．haven't known

D．didn't know

 

Answer 1

【答案】

D

【解析】根据语境可知第二个人在说话前不知道第一个人谈及的事情，用一般过去时。