1) They are two of a set of triplets.
2) His grandchildren may have been childless, but they were still great!
3) The plane is stationary at an airport a mile above sea level.
4) She’s underwater.
5) He is living in a very northerly town, in a place such as in Norway or Canada, where the sun does not rise for three months.
6) The boxer was a dog.
7) Molly is deaf.
8) She worked at the job centre.
9) She witnessed my passport application.
10) He was piloting a plane heading west, flying faster than the rotational speed of the Earth.