For some time the expert __________ people of the health risks caused by passive smoking. He says he won’t stop until all the smokers around him decide to quit smoking.
Tom’s parents were very worried because ___little effort he made could hardly achieve the goal to be ___ captain of the team.
____ surprises us most is that she doesn’t even know ____ the difference between the two lies.
--- Do you think living in the country has advantages? --- ____.
____ in the care of his grandmother, Ted grew to be a boy with very good manners.
All the children on the playground stared up into the sky until the noise of the plane ____.