It is believed that hard work is the ____ of one’s success.
Up to now nobody _______ do this better than Charlie Chaplin.
How are the things in your village?Modern farming methods have been brought in and the villagers are ________ now than before.
Scientists are convinced ___________ the positive effect of laughter ___________ physical and mental health.
Those who are not _______ with the progress they have made will work harder.
He was in the mountain for a year. He felt as if he was ________ from the outside world.