Nuclear science should be developed to benefit the people _____ harm them.
____ 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 ____.
--- Is Alice playing both basketball and tennis for your school? --- She ____. But now she has given up playing basketball.
--- Why did Miss Li leave the job? --- She ____ for higher wages, but was turned down in the end.
--- Did you have any difficulty catching yesterday’s lecture? --- No. The professor spoke very clearly to make his speech easy ____.