1,你正在找什么？我正在找一些關于科學的書。2，我的自行車失蹤了，你有沒有在哪個地方看過？3，昨晚他被聽見在窗外唱歌。4，我很確定我們還需要帶什么。5，我好久沒收到我筆友的來信了。

熱心網友

What are you looking for ? I am looking for a book about science.My bike lost. Did you see it somewhere?He was heard of singing a song out side of the window.I am sure about what more we should take.I have not received any letter from my pen pal for long time.