阅读下面的短文，根据短文内容从每小题所给的A、B、C、D 四个选项中，选出一个可以填入空白处的最佳选项，使短文意思完整、句子通顺。

We go to school every day, and our teachers teach1in school. Do our teachers give classes from space? No, they don't. But Zhai Zhigang, Wang. Yaping and Ye Guangfu, the three Chinese astronauts(宇航员)2. In the Tiangong Class, they teach students thing s about3. I love the class very much! I think the class is great fun! After this class, I want4an astronaut, too. So I need to eat5and do sports every day. The three great astronauts go into space6 October, 2021. And after six 7, they come home on April 16th, 2022. It is a long time! The 2022 Spring Festival is in February, the8month of the year. They9stay(待) with their family during the Spring Festival. I like their job(工作)10 l think it's great to be an astronaut.