It was a remarkable ________ that John should turn up here just when we needed him.
You were silly __________ your car, otherwise it wouldn’t have been stolen.
The health organization is ___________ its tenth anniversary this year.
He was severely injured in the war and his __________ prevented him from holding any job.
_______ with a difficult situation, Arnold decided to ask his boss for advice.
Halfway up the mountain we stopped to ______________.