阅读下面短文，掌握其大意，然后从各小题所给的四个选项中选出最佳选项。
Chen Dong, a great astronaut, has become the first Chinese to stay in space for more than 200 days. This is the _________ time Chen has explored(探索) into space, following his first stay in Tiangong-2, in 2016. “Chen is always trying to _________ mistakes and does everything perfectly,” said Jing Hai peng, one of his team members. Chen was born in 1978 in Henan Province. To be a qualified(合格的) astronaut, he had been trained _________ for years. And finally in May, 2010, he _________ China’s astronaut team.
As the _________ of the group, Chen led the team of Shenzhou-14 to complete many tasks. For example, they had three spacewalks, did some experiments(实验) and even gave a science _________ like teachers to all the students. By the end of 2022, the Chinese space station had been fully completed. All the Chinese waited so long to see this _________ moment.
“Building China’s space station is always the _________ of all Chinese people,” Chen said. “We are so _________ to see that the space home is completed in our hands. We will make good use of our space station to __________ more sci-tech experiments, so as to get more achievements to serve the world.”
11. | A．first | B．second | C．third | D．last |
12. | A．avoid | B．hide | C．make | D．repeat |
13. | A．comfortably | B．quietly | C．strictly | D．excitedly |
14. | A．built | B．joined | C．supported | D．left |
15. | A．member | B．learner | C．traveler | D．leader |
16. | A．message | B．magazine | C．movie | D．class |
17. | A．important | B．difficult | C．dangerous | D．common |
18. | A．invention | B．discovery | C．dream | D．experience |
19. | A．lucky | B．nervous | C．serious | D．worried |
20. | A．look out | B．carry out | C．take out | D．get out |
