What happened to one of the four birds?
I told the policeman ______ had happened when I was taken to the police station as a witness.
We are()how an error like this could have happened.
We are()how an error like this could have happened.
Something must have happened on their way. Or they _____ by now.
Each of them had a different()of what actually happened, but hers was by far more believable.
What’s happened in August?
What happened to China in 1998?
()you told me, I had heard nothing of what happened.
History is the story of()happened to the people before today.