Little joy can equal ____ of a surprising ending when you read stories.

--- Where can we have supper tonight? --- Oh, if you don’t mind,we can do it at _____ of the restaurants.  

How can you take____ for granted that you can get something for nothing?

In fact, ＿＿＿is a hard job for the police to keep order in an important football match. 

—Who helped Betty tidy up the bedroom just now?—_________. She cleaned it all by herself.