There were two small rooms in the house, _____ served as a kitchen.
Though it is not our normal _____ to pay in advance, I think it’s ok this time.
How many nationalities________ our country __________?
The officials soon realized that, ____, things would get worse.
____ born in Toronto, Canada, the author is most famous for the stories about New York City.
---Do you doubt ___ she has passed the exam? ---I’m not doubtful at all ___she has passed the exams.