The murderer was brought in, with his hands ______behind his back.
He hurried out and ______the chair.
There were signs here and there, _____ visitors to look out for ______ rocks.
I don't doubt ______ he will pass the tomorrow’s exam.
We were ______ on our way to the airport because of the heavy snow.
______ all the required papers, he didn’t answer the questions fluently in class.