Language practice puntuation

1. On Friday , we will have another chance .
   On Friday, we will have another chance.
2. It 's not necessary,but I will do it.
   It's not necessary, but I will do it.
3. The movie,Full Speed, is coming soon.
   The movie "Full Speed", is coming soon.
4. It' s a well designed program.
   It's a well designed program.
5. IBM(International Business Machines ) was not present.
   IBM (International Business Machines) was not present.
6. Clinton said,"How do you like my budget"?
   Clinton said, "How do you like my budget?"
7. The word "arbeit "is not English.
   The word "arbeit"_is not English.
8. The New York Times called it "a giant mistake. "
   The New York Times called it "a giant mistake".
9. The blue colored text is hypertext .
   The blue colored text is hypertext.
10. HTML (hypertext markup language)is used to link documents,but the server must be able to find the document.
    HTML (Hypertext Markup Language) is used to link documents (but the server must be able to find the document).
11. Turing said,"Give me read-write head and a..tape long enough and I will compute the world."
    Turing said, "Give me read-write head and a tape long enough and I will compute the world."
12. There are many technical terms, for example,"RAM", "ROM," and "EPROM."
There are many technical terms, for example, "RAM", "ROM," and "EPROM".
13. Three companies participated:Fujitsu,IBM, and NEC.
Three companies participated: Fujitsu, IBM_and NEC.
14. JIS ( Japan Industry Standard ) codes are used.
JIS (Japan Industry Standard) codes are used.
15. That ' s not the procedure we need.
That's not the procedure we need.
16. They invited NEC,IBM,and Toshiba to the trade show.
They invited NEC, IBM and Toshiba to the trade show.
17. It says that the third power of two(2^3) is eight.Is that right?
It says that the third power of two(2^3) is eight, is that right?
18. Grace Murray Hopper, who developed the Common Business-Oriented Language (COBOL), said that, " If anyone asked if we were accomplishing anything, we replied that we were 'debugging"."
Grace Murray Hopper, who developed the Common Business-Oriented Language (COBOL), said that, "If anyone asked if we were accomplishing anything, we replied that we were 'debugging'".
19. ENIAC was...the world's first fully electronic general-purpose (programmable) digital computer, although this claim, as well as the validity of the patents for ENIAC, was challenged in 1973 by John V. Atanasoff (b.1903,) a professor at Iowa State College.
ENIAC was the world's first fully electronic general-purpose (programmable) digital computer, although this claim as well as the validity of the patents for ENIAC was challenged in 1973 by John V. Atanasoff (b.1903) a professor at Iowa State College.
20. Turing visited the United States in 1942 and apparently talked with John von Neuman (1903-1957) , a mathematician, but had little impact on the American development of the computer until after the war,at which time there was extensive American-English discussion on the subject of computation.   Turing visited the United States in 1942 and apparently talked with John von Neuman (1903-1957), a mathematician, but had little impact on the American development of the computer, until after the war at which time there was extensive American-English discussion on the subject of computation. 

I think about this excercises are very important for the development of our skills and that is so fantastic!.