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¡¡¡¡( ) 1. A place to live in space is _________.
¡¡¡¡A. a space station B. an apartment C. a rocket
¡¡¡¡( ) 2. 10 years ago£¬ _________ only one classroom building in our school.
¡¡¡¡And in 10 years£¬ _________ five classroom buildings in our school.