13、Some people would rather ride bikes as bike ridding has ___of the trouble of taking buses.
A good story does not necessarily have to have a happy ending, but the reader must not be left __________.
—Have you got any job offers?—No. I __________.
It was a nice house, but __________ too small for a family of five.
Why are you so anxious? It isn't your problem __________.
A man is being questioned on the __________ murder last night.