2 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。

The return capsule of China's Chang'e-5 probe touched down in Siziwang Banner, north China's Inner Mongolia Autonomous Region, Dec. 17, 2020. The Chang'e-5 mission       1     (successful) brings back China's first samples collected from the moon.

As China's most complicated space project, the Chang'e-5 mission has achieved the sampling outside the earth and returning for the first time.       2     is another major achievement in overcoming difficulties by giving full play to the     3       (advantage) of the new nationwide system, marking a great step forward in China's space industry. This will contribute to deepening the     4     (understand) of the origin of the moon and the evolution history of the solar system.

Noting that there is no end for space exploration, all members     5     participated in the Chang'e-5 mission     6     (carry)   forward the lunar exploration spirit of pursuing dreams, daring to explore, cooperating in tackling difficulties and win-win cooperation, so as to start new interplanetary（太阳系内的）exploration and contribute to building the country into a major power in space and the building of a community with a       7     (share) future for humanity.

Chang'e-5 mission has achieved many major breakthroughs including China's first lunar surface sampling and sealing, first liftoff     8     the moon, first rendezvous and docking（交会和对接）in lunar orbit, and first spacecraft carrying samples     9       ( re-enter) the Earth's atmosphere.

The success of the Chang'e-5 mission     10     (mark) a conclusion of China's current lunar exploration project.