The girl is in a bad mood because she_____(lose) her favourite pen.
问题描述：
The girl is in a bad mood because she_____(lose) her favourite pen.
答
The girl is in a bad mood because she lost her favourite pen
这个女孩是心情不好,因为她丢失了她最喜欢的钢笔
lost 遗失（lose的过去分词）