Words _____ me when I wanted to express my thanks to him for having saved my son from the burning house.
The father, ready to retire at an early age, hoped that his eldest son would ______ the family business.
My sister-in-law is the ______ of the information, so it cant be false.
--I believe that more effective measures have to be taken before we can breathe cleaner air.--______. Air pollution has become too serious a problem.
Only when our project has been approved of by the committee ______ to carry it out.
We are lucky to be among the generation of people who have ______ and experienced the great social changes in our country.