The doctor is skilled at treating heart trouble and never accepts any gift from his patients, so he has a very good __________.
—What did your parents think about your decision?—They always let me do __________I think I should.
Nobody believed his reason for being absent from class__________he had to meet his uncle at the airport.
—It’s thirty years since we last met.—But I still remember the story, believe it or not, __________ we got lost on a rainy night.
— Could you do me a favour?— It depends on __________ it is.
We haven’t settled the question of __________it is necessary for him to study abroad.