l left a suitcase (on the train to London)the other day.对括号部分提问
问题描述：
l left a suitcase (on the train to London)the other day.对括号部分提问
答
Where did you leave a suitcase the other day? 第二天你在哪丢的手提箱？ leave 是left 的原形
答
what's the explaination of "suitcase"
答
where did you leave a suitcase the other day
答
Where did you leave the suitcase the other day?
应该用the