I am_____ to learn that Picasso produced more than 20,000 pieces of art ___ he wasn’t just a painter.
______ 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.
Our new English teacher, who is said to have moved back to China, ______ in America for almost ten years.