Whatever he explained, he couldn't ______ the policeman that he was innocent.
“The moment ______ soon,” he thought to himself, waiting nervously.
______ nearly all behavior is learned behavior is a basic assumption ______ has been put forward by the social scientists.
He is very ______ and well-qualified, so he should reach the top of his profession.
______ nobody else at hand, I had to carry the heavy box to the eighth floor by myself.
-- Do you enjoy the moves of Gangnam Style? --- ______ . I just do it to keep fit.