Do you often watch TV? Maybe your 1 is "Yes". Most children like watching TV 2it's interesting and relaxing. They can also learn a lot and know3 things about their country and the world. TV helps to open children's eyes. TV can open 4mind. They can learn some better ways of 5 things. Many children are always6 with their studies, so they watch TV only on weekends. 7 some children watch TV every night. They go to 8very late and they can't have a good rest. I 9 it's good to do so. What do you 10 it?

连词成句

苏联在1953年将中东铁路所有权还给中国，1955年将旅顺军港交还中国并放弃在新疆企业的股份，1957年同意援助中国开发核技术。中国则在1956年调停苏联与东欧国家的关系。这些事件表明当时中苏两国（    ）

关于物理变化和化学变化的关系，下列说法正确的是（　　）

按课文内容填空。

   篱落____, 树头____ 。儿童 ____, 飞入____。