问题描述：
问英语题……五四制初三……是一道完形填空,说的是宇航员什么的……
befor f____into space, they had lots of p_____. Each upside-down training l____for many days. They also have to know every part of the spaceship and how it w_____
befor f____into space, they had lots of p_____. Each upside-down training l____for many days. They also have to know every part of the spaceship and how it w_____
问题解答：
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