________ got on the train when it began to move.
It's surprising that your brother __________ Russian so quickly—he hasn't lived there very long.
While __________ out of the window, I saw my father walking the dog in the garden.
He was so abandoned __________ computer games __________ he fell behind others soon.
It is reported that she was seen running away from the __________ of the crime.
After a month of hard work, most of the people in the city go to enjoy the __________ of nature in the country to get relaxed.