Whether you believe it or not, it is ______that causes your illness.
It was a pity that the great writer died his works unfinished.
The man used what he had _____ his wife a diamond ring.
—Since you like the fur coat so much, why not buy it?—Well, I can’t afford coat.
No sooner had he finished his talk he was surrounded by the workers.
physics, he likes maths better.