The old man fell down the front steps, knocked his head, and lost ________; when he woke up, he was back in his house.
_________ from what he did, he isn’t a person to depend on.
The _____ look on his face showed that he had enough confidence in himself.
She didn’t ______ work when she had the baby.
______ the students in our class is 50 and _______ them study very hard.
She searched all the places where she _____ have left her necklace but it was all in vain.