The Chinese Lunar(月球) Exploration Program is designed to be conducted in three stages: The first is simply reaching lunar orbit(轨道), a taskcomplete) by Chang'e 1 in 2007 and Chang'e 2 in 2010. The second is(land) on the Moon, as Chang'e 3 did in 2013 and Chang'e 4 in 2019. The third one is collecting lunar samples and sending them to Earth, a task for the future Chang'e 5 and Chang'e 6 missions. It(be) China's first sample return mission in December 2019.
