She _____ the book sometime in the past as there is no way she could have answered the questions so accurately.
When she was awake, she found that she was lying on____seemed to be a piece of stone.
---Please tell Bruce he has won the first prize in the maths contest. ---_____He never did so well before.
I got up early this morning, but I ________ so because I was not on duty today.
It’s dangerous to have the fire _______ at home all night long.
The article is too long and should be _______ by half.