The next morning I 'd just about given myself up for lost when I was spotted by a ship.
问题描述：
The next morning I 'd just about given myself up for lost when I was spotted by a ship.
句子当中的“I'd” 是什么的缩写?when引导的是一个什么从句?
答
had,状语从句是时间状语从句吗？是的