根据短文内容，从方框中选择恰当的单词填空，有的需要变换形式。

    Lucy lost her schoolbag. It's the  time (次). She is not happy about it  her books, pens and many other (许多别的)  are in it. Her friend David wants to help her, so he posts the message (发消息) on Twitter. He thinks it can be After about two  a boy finds the schoolbag. David thanks the boy, and the schoolbag to Lucy.