Correct the errors in these quotations. I Have this homework, I don't know if I'm in the right track...

1."This is the hardest class I've ever taken. It's also the most rewarding. The teacher sets the bar high and I think that forces us to learn more," said Joe Smith, a senior, of Journalism 201.
Correct: "This is the hardest class I've ever taken, and it is also the most rewarding. The teacher sets the bar high and I think that forces us to learn more," said Joe Smith, a journalism.
2.Gretchon Davies, a senior communications studies major, is taking three online courses this semester while she works full time. "I couldn't possibly attend three classes in person every week."
Correct: Gretchon Davies, a senior communications studies major, is taking three online courses this semester while she works full time. I couldn't possibly attend three classes in person every week.
3.University College said it will begin offering journalism classes online this fall.
Correct: University College said, “It will begin offering journalism classes online this fall.”
4. Marty Jennings, a senior, feels University College should offer all of its courses online.
Correct: Marty Jennings, a senior, feels University College should offer all of its courses online.

1 and 2. I believe you left something out of your corrections.

3. Wrong. To whom does "It" refer in your correction?

4. I don't see any difference between the original and your correction.

1. "This is the hardest class I've ever taken, and it is also the most rewarding. The teacher sets the bar high, and I think that forces us to learn more," said Joe Smith, a journalism major.

2. Gretchon Davies, a senior communications studies major, is taking three online courses this semester while she works full time. She said, "I couldn't possibly attend three classes in person every week."

3. University College announced that it will begin offering journalism classes online this fall.

4. Marty Jennings, a senior, believes that University College should offer all of its courses online.

1. "This is the hardest class I've ever taken, and it is also the most rewarding. The teacher sets the bar high and I think that forces us to learn more," said Joe Smith, a journalism student.

Explanation: The corrected quotation includes a comma before "and" to separate two independent clauses. Additionally, "Journalism 201" is changed to "a journalism student" to specify the field of study.

2. Gretchon Davies, a senior communications studies major, is taking three online courses this semester while she works full time. "I couldn't possibly attend three classes in person every week."

Explanation: The corrected quotation doesn't need any changes as it accurately conveys Gretchon Davies's statement.

3. University College said, “It will begin offering journalism classes online this fall.”

Explanation: The corrected quotation includes quotation marks to indicate that "It will begin offering journalism classes online this fall" is a direct quote from University College.

4. Marty Jennings, a senior, feels University College should offer all of its courses online.

Explanation: The corrected quotation doesn't need any changes as it accurately represents Marty Jennings's statement.