Using commas
Dr. Perillo, a nutritionist, is an expert on proper eating.
"Students, it's important to eat a well-balanced diet," she said.
"Yes, but how do we know what the right foods are?" asked one student.
All are right.
1. Dr. Perillo, a nutritionist, is an expert on proper eating.
2. "Students, it's important to eat a well-balanced diet," she said.
3. "Yes, but how do we know what the right foods are?" asked one student.
In the given sentences, commas are used to set off and provide additional information about a person and to indicate direct speech.
Let's break down the usage of commas in the sentences:
1. "Dr. Perillo, a nutritionist, is an expert on proper eating."
- Here, commas are used to set off the additional information about Dr. Perillo being a nutritionist. The commas indicate that the phrase "a nutritionist" is not essential to the meaning of the sentence but provides additional information about Dr. Perillo.
2. ""Students, it's important to eat a well-balanced diet," she said."
- In this statement, commas are used to indicate direct speech. The comma is placed before the opening quotation mark to separate the introductory phrase "Students." and the actual speech of the speaker. The closing quotation mark is not followed by a comma since the sentence continues after the speech.
So, by observing these examples, we can understand that commas are used to set off additional information about a person and to indicate direct speech in sentences.