This question already has an answer here:
“Those girls, who serve in the restaurant are very enthusiastic.”
I’m from vietnam and my teacher said that relative clause which have demonstratives such as ‘this’,’that’,’these’,’those’ requires comma like the sentence above. Is that true ?
“Those girls who serve in the restaurant are very enthusiastic.”
Is this sentence whithout comma grammatically wrong? I would be grateful if someone can help me make it clear.