描述物品位置：in/on/under — 英语选择题
题目
Tom 的球（ball）不见了。妈妈说："Look! The ball is not on the box. It is not under the box. It is in the box!" 根据妈妈的话，球在哪里？A. The ball is in the box. B. The ball is on the box. C. The ball is under the box. D. The ball is in the bag.