It was not until he came back _____ he knew the police were looking for him.
He, along with his brothers, ______ how serious the situation is.
This is the factory ________ we visited last Monday.
______ you have finished your work, you ought to have a good rest.
All of her time was devoted to_______ her homework, so she had no time to have fun.
When you sleep, your body prepares you for the day _______.