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Answer:
A. Washington was a general before becoming president, and Jackson was also a general.
E. After his voyage in 1942, Columbus and his men arrived in what they believed to be Southeast Asia.
Explanation:
I majored in History
The examples of proper usage of comma from the question given are stated below.
- Washington was a general before becoming president, and Jackson was also a general.
- After his voyage in 1492, Columbus and his men arrived in what they believed to be Southeast Asia.
What is Comma?
A comma is a form of punctuation mark (,) which is use to show a pause between sentences or it is use to separating items in a list in a sentence.
Therefore, the proper usage of comma from the question given are stated below.
- Washington was a general before becoming president, and Jackson was also a general.
- After his voyage in 1492, Columbus and his men arrived in what they believed to be Southeast Asia.
Learn more about Comma from the link below.
https://brainly.com/question/26220899