Charles did what he could _____ the servant, although he himself was in danger.
There are things people accept less , ____ you defend them.
In no country ______ Britain , as is often said , ______ experience four seasons in a day .
--- The accident might not have happened , had we been more careful . --- But we _______.
The more you learn , _______.
Devoted to their study , many high school students ______ little importance to sports.