i think i ___(drop) my backpack during the part last night.

问题描述:

i think i ___(drop) my backpack during the part last night.

填 dropped

我觉得我是昨晚在公园把我的背包弄丢的

若有疑问及时追问,满意敬请采纳,O(∩_∩)O谢谢~~