将下列句子重新排列，组成一段完整的对话。(只写序号即可)

A. Tell me about your picnic.  

B. Dad, we had a picnic last Sunday.  

C. We ate some food and drank some drinks.  

D. Was it fun?  

E. Then (然后) we played games and walked in the park.  

F. Yes, it was.