From space, the earth looks blue. This is __________ about seventy-one percent of its surface is covered by water.
—What about going for a walk? —______.
______ with routine office tasks, she had no time to look after her children.
The audience ______ to see who would win the gold medal.
Dr. Peter Spence, headmaster of the school, told us, “fifth of pupils here go on to study at Oxford and Cambridge.”
All children are required to ______ school.