The man we followed suddenly stopped and looked as if _________ whether he was going in the right direction.
A cook will be immediately fired if he is found _______ in the kitchen.
We looked everywhere for the keys, but they are nowhere _______.
He was reading his book, completely _______ to the world.
Anyone _______ bags, boxes, or whatever, was stopped by the police.
“Mum, why do you always make me eat an egg every day?” “________ enough protein and nutrition as you are growing up.”