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Coordinators
A. Complete Practice 4 page 167 in your textbook.
B. 2. According to the Big Bang Theory, the universe began expanding about  13.7 billion
C. years ago, and it has been expanding every since.
D. 3. Does the universe have an outer edge, or is it infinite?
E. 4. Scientists predict that intelligent life exists somewhere in the universe, but we have
F. not been able to find any sign of it yet.
G. 5. Mars probes have photographed rocks with water markings on them, yet  there is no H. water there now.
I. 6. We may not be able to communicate with other life forms, for we will not  know J. their language.
K. 7. Instead of taking the psychology final exam, we can write a ten-page  research paper,
L. or we can give a presentation.
M. 8. I want to write a research paper, yet I do not know what to write about.
N. 9. Three weeks before the end of the term, I had not started my paper, nor  had I even O. chosen a topic.
P. 10. I needed help choosing a topic, so I went to the professor to ask for  suggestions
Q. 2. According to the Big Bang Theory, the universe began expanding about  13.7 billion
R. years ago, and it has been expanding every since.
S. 3. Does the universe have an outer edge, or is it infinite?
T. 4. Scientists predict that intelligent life exists somewhere in the universe, but we have
U. not been able to find any sign of it yet.
V. 5. Mars probes have photographed rocks with water markings on them, yet  there is no W. water there now.
X. 6. We may not be able to communicate with other life forms, for we will not  know Y. their language.
Z. 7. Instead of taking the psychology final exam, we can write a ten-page  research paper, AA. or we can give a presentation. BB.
8. I want to write a research paper, yet I do not know what to write  about. CC.
9. Three weeks before the end of the term, I had not started my paper,  nor had I even DD. chosen a topic. EE.
10. I needed help choosing a topic, so I went to the professor to ask  for suggestions
FF.2. According to the Big Bang Theory, the universe began expanding about  13.7 billion GG.
years ago, and it has been expanding every since. HH.
3. Does the universe have an outer edge, or is it infinite?
II. 4. Scientists predict that intelligent life exists somewhere in the universe, but we have
JJ. not been able to find any sign of it yet. KK.
5. Mars probes have photographed rocks with water markings on  them, yet there is no LL. water there now. MM.
6. We may not be able to communicate with other life forms, for we  will not know NN. their language. OO.
7. Instead of taking the psychology final exam, we can write a ten- page research paper,
PP.or we can give a presentation. QQ.
8. I want to write a research paper, yet I do not know what to write  about. RR.
9. Three weeks before the end of the term, I had not started my paper,  nor had I even SS. chosen a topic. TT.
10. I needed help choosing a topic, so I went to the professor to ask  for suggestions UU. g about 13.7 billion VV.
years ago, and it has been expandin
2. According to the Big Bang Theory, the universe began expanding about 13.7 
billion years ago, and it has been expanding every since.
3. Does the universe have an outer edge, or is it infinite?
4. Scientists predict that intelligent life exists somewhere in the universe, but we 
have not been able to find any sign of it yet.
5. Mars probes have photographed rocks with water markings on them, yet there is  no water there now.
6. We may not be able to communicate with other life forms, for we will not know  their language.
7. Instead of taking the psychology final exam, we can write a ten-page research 
paper, or we can give a presentation.
8. I want to write a research paper, yet I do not know what to write about.
9. Three weeks before the end of the term, I had not started my paper, nor had I  even chosen a topic.
10. I needed help choosing a topic, so I went to the professor to ask for  suggestions.
2. According to the Big Bang Theory, the universe began expanding about 13.7 
billion years ago, and it has been expanding every since.
 B. Make a compound sentence that:
1. contains "and", talking about education
 Education enhances the self-confidence of a person, and it makes us certain of things  in our life. 
2. contains " so", talking about technology
With the invention of technology we become more powerful, so we have the ability
to transform the environment, and even explore various new things about the  universe.
3. contains "for", talking about environment
The air is polluted , for large 
 of harmful smoke are discharged  amounts daily by  the factories and vehicles.
4.contains “but” , talking about social issues.
Poverty is considered one of the leading social problems worldwide, but the 
government has not given any solutions up to the present.
5. contains "yet", talking about social issues
Overpopulation is one of the significant reasons behind unemployment, yet people 
still give birth without controlling.
6. contains “nor”, talking about education
You are not an educated person, nor do you have many opportunities to live a  life of your choice. 
7. contains "or", talking about sport
You should perform at least one sport activity on a regular basis, or you risk getting  heart diseases.