(英语)改一个句子到定语从句My father has a bus,we go to school by it.目前不确定哪个是对的

问题描述:

(英语)改一个句子到定语从句
My father has a bus,
we go to school by it.
目前不确定哪个是对的

My father has a bus, by which we go to school.

My father has a bus which we go to school by.

My father has a bus,by which we go to school.
都对的

My father has a bus by which we go to school.
或 My father has a bus wich we go to school by.