WITH 的就远原则怎么判断?with的就远原则是什么意思

题目

WITH 的就远原则怎么判断?with的就远原则是什么意思
My borther,together with his classmates who __ late for class,__ criticized by Mr.Li.
A.were,was B.was were C.was,was D.were,were
为什么选A 如果是with的就远原则,那位什么不是两个WAS呢

答案