就是我们常说的"过去的过去"。 Until then, his family hadn t heard from him for six months. 到那时为止,他家里已经有六个月没得到他的消息了。 07 过去将来时(would do) 表示从过去的某个时间看将要发生的事。 例:I said on Thursday I should see my friend the ...