故事中连词 first, then, finally 的使用 — 英语填空题
题目
Ben讲述一次小小的寻物经历，请在横线上填入 first、then 或 finally，使故事顺序清楚，每个词限用一次。
___, Ben looked for his blue cap in the living room. ___, he checked his schoolbag and found it there. ___, he put the cap on and went outside.