题目内容：

阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空白处填入一个适当的词或使用括号中词语的正确形式填空。

It's December. It is snowing and the weather is1.(real)cold in the north of China. You can2.(see)many children playing with snow. Some of them3.(be)making snowmen. Some are4.(skate)on the river, because it's so cold that the water in the river freezes (结冰)．It's a white world. 5.beautiful! 6.in Australia now, the weather is hot. Many people go7.(swim)in the sea. They are having a good time. Jim and his friends are playing soccer near the sea. The8.(sun)weather is really cool to them. They want to swim after playing soccer.

9.are they swimming in December? That is winter，isn't it? Yes, it is in10. (Chinese). But it isn't in Australia. That's because China and Australia have different seasons in a year.