Hello teacher?
This is sally's mother. Would you help me with English grammar?
>> This is Sally's mother. Could you help me with English grammar?
Are these sentences grammartically right?
>> Are these sentences grammatically correct?

I suggested a good book for him to read that would really help him.

This is the very book that I wanted to read.

She insists that the his car accident resulted from his carelessness.

>>THESE SENTENCES ARE ALL CORRECT.