题目

请根据对话内容，从下面方框所给的选项中选出合适的句子补全对话 David :Hello, Linda .   1    Linda :I’d like to see animals . David :    2     Linda :Yes, I do. David :    3    Linda :My favourite animal is the panda. David: I like the panda ,too.  4   Linda :Yes.They usually eat fifteen  kilos of bamboo every day. David:     5    Linda :About 12 hours . David: Sounds interesting. A. Do you want to go to Guangzhou Zoo? B. How many hours do they eat for aday ? C. Whatwould you like to do ? D. What’syour favourite animal ? E. Ther公差不为零的等差数列的前项和为.若是的等比中项, ,则=（  ）.          A． 18 B． 24 C． 60 D． 90