The (a)   for this is that we are astronauts on the International Space Station.

This place is ___ ___ up that it makes our daily lives very ___.

(a)  

reason是甚麼意思?

(a)  

astronaut是甚麼意思?

(a)  

Earth是甚麼意思?

(a)  

International Space Station是甚麼意思?

(a)  

daily lives或daily life是甚麼意思?

(a)