li ming came to school --- his dad is car this morning.a\ onb\ inc\ byd\ at为什么答案是b理由越详细越好,好的有赏

问题描述:

li ming came to school --- his dad is car this morning.
a\ on
b\ in
c\ by
d\ at
为什么答案是b
理由越详细越好,好的有赏

你这句话his dad 后面的is 是不是’s呀.在小轿车里用in ,这也是习惯用法