I was deep in thought, so I didn't notice _____.

Research ________out at Livepool University supports this idea and suggests that if we don’t use the sense of direction, we’ll lose it.

_________ in a heavy rain，Robert fell ill and couldn’t help but _________ for a leave.

 ----What made her so upset? ----________.

One third of the Ukrainian population live in the eastern region near Russia and speak Russian, most of them ______ closer to Russia.