Smith was overweight, so the doctor recommended that not only have less fat and meat, but also he .
______ 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.
Whatever happens , Ben, ________ drugs.