One third of the class _____ agreed to be volunteers to help the aged this vocation.
He slowed the bleeding by pressure to the wounds until the ambulance arrived.
Facing the poor grades, Maria is wondering what it ___ to learn English well.
_____ you didn’t know the rules won’t be an excuse for your failure to report.
— Did a letter come for me this morning? — Yes. _____ came for you.
— I really don’t know how to thank you enough. — ________________.