I'm Alan. The weekend just ended. Yesterday I went to visit the museum. It is about 3 kilometers away from my home. So I decided to go there by bike, I set off at half past eight. At the museum I saw many photos and other things. I learned a lot. There were also a lot of children with their parents，students with their teachers and soldiers. At eleven o'clock, I left the museum for home. I had a wonderful time yesterday.

阅读短文，回答下列问题。

材料一：在正常人的血浆中，NaHCO₃的含量约为H₂CO₃含量的20倍．当血浆中的NaHCO₃含量减少时，会发生酸中毒；当血浆中的H₂CO₃含量减少时，则发生碱中毒．

材料二：在初生蝌蚪或幼小植物体内，当自由水的比例减小时，机体代谢强度降低；当自由水的比例增大时，机体代谢强度升高．

材料三：Mg²⁺是叶绿素分子必需的成分；Fe²⁺是血红蛋白的重要成分；碳酸钙是动物和人体的骨骼和牙齿的主要成分．

材料四：人体某些组织的含水量近似，但形态却不同．例如，心肌含水量约为79%而呈坚韧的状态，脑中含水量约为84%而呈溶胶状．

材料五：血液在血管中呈液态，当血液从血管中流出后则会凝固．

补全对话
A: What animals do you want to see ?
B: ____                       .
A: Why do you like to see pandas?
B: ____ .
A: Really? By the way, do you want to see the elephants in the zoo?
B: ____              .
A: I like to see elephants, too.  Because they can dance.
B: Do you want to be an assistant in the zoo?
A: Well , to work for animals is interesting, but kind of dangerous. I don't like it.
B: ____ ?
A: I want to be a reporter. I can meet many famous (著名的) people.
B: That's great . Thank you.
A: ____