— Did you go to the zoo with them yesterday? — . I was too busy.A. Yes I wasB. Yes I did

问题补充：

— Did you go to the zoo with them yesterday?

— . I was too busy.

A. Yes, I was

B. Yes, I did

C. No, I wasn’t

D. No, I didn’t

答案：

A. Yes, I was

B. Yes, I did

C. No, I wasn’t

(答案→)D. No, I didn’t

解析：句意：——你昨天跟他们一起去动物园了吗？——没有，我昨天太忙了。对于一般疑问句Did you do sth.?,肯定回答Yes, I did, 否定回答 No, I didn’t.结合语境选D。