______ nearly all behavior is learned behavior is a basic assumption ______ has been put forward by the social scientists.
A．What, that B．That, what C．What, what D．That, that
He is very ______ and well-qualified, so he should reach the top of his profession.
A．proud B．jealous C．ambitious D．enthusiastic
______ nobody else at hand, I had to carry the heavy box to the eighth floor by myself.
A．It having B．It has C．There was D．There being
-- Do you enjoy the moves of Gangnam Style?
--- ______ . I just do it to keep fit.
A．Of course B．Not really C．Not likely D．Not a little
Our new English teacher, who is said to have moved back to China, ______ in America for almost ten years.
A．lived B．has lived C．was living D．had lived
--- What attracted you to our university?
--- You have a great basketball team and I can _______ for it.
A．work out B．look out C．try out D．carry out
