The woman has just taken her first steps into _____space.(a/an/ "/" /the)

问题描述:

The woman has just taken her first steps into _____space.(a/an/ "/" /the)

the
the space 应该是特指宇宙空间吧????答案给的是“/”诶。。查了一下 step into space 是固定搭配,或者说 xx into space 只要是进入太空, 这个space就没the