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temporary contemporary permanent consistent
temporary contemporary permanent consistent
they only cared for the Russian astronauts they were not interested in their own astronauts the Russian government invited them to do their research the Russian astronauts worked in space for a long time
might go through may go through should have gone through must have gone through
As long as So far as As much as As soon as
the ; / the; the /; the /;/
to choose to be chosen to choose from to be chosen from
800-meter-long 800-meters-long 800 meter long 800 meters long
Entering the orbit and landing on the moon. Landing and walking on the moon surface. Exploration and researches into the moon composition. Exploration and construction of a moon bas
B.C.D.四个选项中，选出可以填入空白处的最佳选项。 The astronauts were so interested in beauty of nature that they took lots of pictures
in spacE. A. the ; / the; the /; the /;/
they only cared for the Russian astronauts they were not interested in their own astronauts the Russian government invited them to do their research the Russian astronauts worked in space for a long time
They will be launched separately. CEV will dock with the moon lander. They will be launched together. The moon lander will hold four astronauts.
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