A. FOLLOWS B. PROGRESSES C. LEADS D. PULLS II. READ TH...
10. A. follows
B. progresses
C. leads
D. pulls
II. Read the passage and choose the best answer to each of the questions. (10 points)
Theories of life on Mars
In the mid-1700s, astronomers observed polar ice caps on Mars. William Herschel saw that the ice
caps changed in size with the seasons. The presence of water and seasons, features present on Earth,
prompted speculation that life might exist on Mars.
Improved telescopes in the nineteenth century further fueled these speculations.
They
allowed
Mars’s surface features to be identified. In 1877, an Italian astronomer, Giovanni Schiapareli, used a