Can you please check my grammar question mark The teacher spoke softer than the student?

The grammar in the sentence "The teacher spoke softer than the student?" is correct. However, it might be more natural to use "more softly" instead of "softer."

Here's why:

* "Softer" is an adjective, usually used to describe a physical object's texture or sound.

* "More softly" is an adverb, used to describe the manner in which someone speaks.

The corrected sentence would be: "The teacher spoke more softly than the student."

It's also worth noting that the sentence is a question, so it should end with a question mark.