Read and match. 1. The sun is a very big... 2. At night we can usually see... 3. People who work in space are called... 4. We live on the planet... 5. When they are in space, astronauts live in a... 6. The Red Planet is another name for... a) Mars. b) star. c) Earth. d) astronauts. e) the moon. f) space station.

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