02. Cross out the underlined pronoun in the sentences where it would be possible to leave it out.
A. I like studying subjects that are related to Astonomy and space exploration.
B. Many scientists believe that human beings will colonize Mars one day.
C. Astronomers are the people who help us understand the universe.
D. I am sure the Earth is not the biggest planet which exists in our system.
E. A telescope is an instrument that we can use to study the stars.
F. We need to find new technologies which will help us explore outer space efficiently.
G. Michio Kaku said that we will all be living in other planets in a short time.
H. Bill is the student who loves studying celestial bodies. ible to leave it out.