15. It’s only by travelling or living in a country and getting to know its inhabitants and their language _________ one can find out _________ a country and its people are like.
As the busiest woman in the village, she made _____ her duty to look after all the other people’s affairs in that village.
Mary felt sad over the loss of photos she had shot in Australia, ______ that was a memory she especially treasured.
Have you ever listened to the song Yesterday once more, ________ singer died in her early years?
The man I ______ yesterday in the street is my manager.
Students are encouraged to _________ the design competition for robots at the university.