完形填空。

    Tom and his father are 1 in the playground. There is a cat and a dog there.  They are playing with a ball together. “I think the cat is 2 than the dog," Tom says, “I don't think so," his father says. “Why?"  “Because the dog looks 3 than the cat " Tom laughs and says, "But I like the cat.  It is white and it is 4 than the dog. " Tom's father says, “Dogs are my favourite animals because they are very 5 to me " "Yes, but I like smaller ones. Can we keep one?" Tom says. "of course," Tom's father says.

世界卫生组织号召大家使用铁质炊具，是因为（     ）

房屋征收与补偿是一个涉及多方利益的问题。假如你所在的班级要以此举办一次模拟听证会，以下是举办听证会过程的一般步骤，你认为最合理的是①将全班同学分成小组，扮演不同的角色②各小组分别准备资料③确定听证会主题④听证会主持人总结⑤模拟听证会的程序，各小组推荐代表陈述观点                                       (　　)

清朝咸丰年间《夷场行》中写道：“人间何地无沧桑，平填黄浦成夷场；高高下下嘘蜃气，十十五五罗蜂房；青红黄绿辩旗色，规制略似棋枰方。……”这些诗句揭露了列强（   ）

把一个长12分米，宽8分米，高8分米的长方体变成一个高10分米的圆锥体，它们的体积相同，求圆锥的底面积是____。