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题目
Put the words in the correct place in each sentence.
例:Astronauts have been to the the moon(already)
Astronauts have already been to the the moon.
1.They haven't been to Mars.(yet)
2.Many asteonauts have visited the space station.(already)
3.The spacecraft has reached Mars.(just)

提问时间:2020-07-26

答案
1.They haven't been to Mars.(yet)They haven't been to Mars yet.2.Many asteonauts have visited the space station.(already)Many asteonauts have already visited the space station.3.The spacecraft has rea...
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