Prof. Richard was crazy about his research. His illness_________ his many years of hard work and irregular diet.
He ended his speech with a remark_______ knowledge _______power.
After entering high school, he felt regretful for the time he had wasted playing computer games and studied hard to ________ it.
More than 100 million people live in the beautiful province, __________.
The World Food Prize, created in 1986, is _______each year to people who have advanced human development by improving the quality, quantity or availability of food in the world.
The British science fiction writer, Isaac Azimac, believes that robots are_____ ever to do harm to a human being.