Always use a comma before somebody's name in a sentence.

A.true
B.false

B

I agree.

You are correct.

Not necessarily. A comma is not needed in this sentence.

Did you see David and his new car?

To find the correct answer to this question, we can refer to the rules of grammar. In general, a comma is not typically used before somebody's name in a sentence. However, there are certain situations where a comma might be appropriate. For example, if the name is being used in direct address or if additional information is being provided about the person, a comma may be used.

In this case, the correct answer is B, false. You do not always need to use a comma before somebody's name in a sentence.