—What are you doing this Saturday?—I'm not sure, but I ________ go to the Rolling Stones concert.
.We were about to go downstairs when the lights_________.
.Jack couldn’t answer the question_________ got the money.
—You did so much work today.You must be very tired.—No,I’m not_________tired.
According to news report,personal_________ of guns in the USA causes a lot of trouble.
The very idea_________a man can think of driving in such a state is really unthinkable.