In which sentence are quotation marks used correctly? “How are your classes,” asked Xavier? “How are your classes? asked Xavier. “How are your classes?” asked Xavier. “How are your classes? asked Xavier.”

Respuesta :

The sentence which uses quotation marks correctly is: "How are your classes?" asked Xavier. When using quotation marks with a question sentence, always include the question mark inside the quotation marks and a comma after the quoted sentence is no longer necessary.  

Answer:

"How are your classes?" asked Xavier.