is a good of exercise for both the young and the old.
________ twice a year, whether it is a car or a bus or a truck, is the rule that every driver must obey in this city.
We agreed to accept ________ they thought was the best professor in the college.
I don’t know who invented ________ telephone. It’s really ________ most useful invention.
I know a little bit about the city as I __________ there for one year in my youth.
Could you show me the TV set you’d like ________?