Astronauts have to take the ... to get to the moon.
Space station
Space shuttle
Astronauts have to take the ... to get to the moon.
Space shuttle
Space station
Astronauts have to come to ...
Saturn
Earth
Astronauts ... wash dishes.
Have to
Don't have to
???
Earth
Black hole
Saturn
Mercury
???
Space station
???
Space shuttle
???
Space suit
???
Astronaut
Scientist
Astronauts ... be friendly.
Don't have to
Have to