Then he looked back at the screen in front of him.

He looked hard at the screen, and took his time.

When he looked again at the screen, Earth was gone.

They looked at the screen, and then the woman did something he could not quite see.

He was looking to one side, at the other screen.

He had to look up at the main screen to see outside now.

After an hour I took my turn at the screen.

He looked again at the screen, then back to the girl.

You'll have to turn around and take a look at your screen.

John looked at his computer screen and called up the first story in question.