Gapped sentences

A.
1. There was an unexpected ........ of events in the world of politics today.
2. I always try to do people a good ........ as it doesn't cost anything to be thoughtful.
3. He was born around the ........ of the century.


B.
1. Her father works in the bank and pulled ........ to get her a job.
2. Is this offer as it seems or are there any ........ attached?
3. Two of the ........ on his guitar have snapped.