Effective treatments do exist, but __________ they are very expensive.
—______ he said at the meeting made everyone present angry. — Yes.We all ______ him of his rudeness.
_______it not been for the free ticket, I would not have gone to the cinema.
The number of people invited __________fifty, but a number of them__________ absent for different reasons.
all the required papers, he didn’t answer the questions fluently in class.
With everything ________, the teacher started the slide show.