最佳答案：My schoolbag is lost. 我的书包丢了。My schoolbag was lost yesterday.我的书包是昨天丢的。My lovely dog has been lost f
My schoolbag is lost. 我的书包丢了。
My schoolbag was lost yesterday.我的书包是昨天丢的。
My lovely dog has been lost for one week now.我的可爱的狗狗已经丢了一个礼拜了。
I was lost on my way down the forest mountain. 在下山的树林里，我迷路了
