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
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
问题解答：
我来补答展开全文阅读