The judge scolded the lawyer because he didn’t keep his remarks to the topic ________discussion.
With a large amount of work , the chief manager couldn’t spare time for a holiday.
______ from the space, the earth, with water _______ seventy percent of its surface, looks like a blue ball.
What troubled the teacher was that no one present made an answer when asked who had broken the glasses, so he didn’t know who .
As we all know, it was _________ that resulted in the terrible car accident.
Don’t answer the phone when the cell phone is being charged, for it ________ be very dangerous sometimes.