John is one of the staff members who ___to be sent abroad for further study.
The old couple _______ their son; what would they do without him?
It was _______ I had time to speak that he rang off.
The thief was caught by some customers and _______ to the police.
— What is Tom like? — He is polite and _______ to the old.
Half of the medical supplies have already been _______ to the victims of the earthquake.