Scientist have many theories about how the universe into being. came B. was coming c had come D. would come
The world economy has improved _____ since the end of last year, but major problems and challenges are not fully solved.
Pain is now considered the fifth _____sign, as important as blood pressure, temperature , breathing rate and pulse in determining a person’s health.
—Do you know what people are saying about you?—Of course I know. But _____ is true, and I don’t care.
In our factory there are 2,000 workers, and two thirds of _______ are women.
_____ the water run while you brush your teeth wastes water.