7. Read the following sentence from the third paragraph.
The heavens and the Earth began to grow at a rate of 10 feet a day. Pan Gu grew along
with them. After another 18,000 years the sky was higher and Earth was thicker. Pan Gu
stood between them like a pillar 30,000 miles in height, so they would never again join.
Which of these words is MOST helpful in showing that Pan Gu helped to keep the sky
and Earth separate?
A. along
C. pillar
B. stood
D. height