Hi all,<br/><br/>Which one is the best option to complete sentence below?<br/><br/>Sally goes to school all ---------.<br/><br/>1- with some other friends of his<br/><br/>2- by herself, because she is not a pre-school child now<br/><br/>By the way, what is the function of the "all" in the sentence above?<br/><br/>Thank you.