Common sense requires us to get away from the concept that national boundaries are frontiers _________ knowledge may not spread.
——I can’t _______ another task, now I have more than I can do. —— In this way, I will ask someone else.
It is you, I think, rather than your wife, _________ to blame for your son’s bad behavior at school.
As is known to all, Montreal is the second largest French-speaking city in the world, ______.
I _______ have been more than six years old when the accident happened.
Men usually go straight to ________ they want and leave quickly when shopping.