she goes to school_an English book in her hand.the teacher_a black hat is Mr.Green.空处填一个介词

问题描述:

she goes to school_an English book in her hand.the teacher_a black hat is Mr.Green.空处填一个介词
why?

with,in解释一下 为什么前面用with表示伴随后面用in表示穿戴