by the end of the first month aboard the spaceship,the martian explorer,the crew............(get used to)living without gravity and to eating their food out of tubes.On a normal day they...........(float) around the cabin
by the end of the first month aboard the spaceship,the martian explorer,the crew............(get used to)living without gravity and to eating their food out of tubes.On a normal day they...........(float) around the cabin
by the end of the first month aboard the spaceship,the martian explorer,the crew.....will have got used to.......(get used to)living without gravity and to eating their food out of tubes.On a normal day they......will be floating.....(float) around the cabin