用适当介词填空Most of the student go to school ------ a bike.

问题描述:

用适当介词填空Most of the student go to school ------ a bike.

on
bike前面有不定冠词,这时bike就是具体的自行车,这时就要用介词on.如果bike前面没有冠词,则bike只表示一种抽象的工具,这时就用by.
不明白的再问哟!请记得采纳,多谢!