When Susan goes to town, she will visit her grandma.
I will go where I am needed. 哪里需要我，我就到哪里去。
I have changed it as you suggest. 我已经按照你的建议作了改变。
Mary didn’t go shopping because I advised her not to.
They worked hard in order that they might succeed.
Waste must be treated so that it does not become a danger to life.
If he works hard, he will surely succeed. 如果努力工作，他肯定会成功。
Though we are all different, we need never be separate.
I was happier than I had ever been in my life. 这是我一生中最快乐的时光。
时间状语从句由下列连词引导：After, as, before, once, since, till, until, when, whenever, while, as soon as
Let's wait till the rain stops. 咱们等到雨停再说吧。
Once the train is moving, there's no way to stop it.
They were scolded whenever they were late for school. 每次他们上学迟到都挨骂。
3. 时间状语从句：the moment
有一些表示时间的名词短语也可用来引导时间状语从句：The minute, the moment, every time, the first time
The moment he reached the country, he started his search.
Every time I saw the straw hat, it reminded me of the tour I made years before.
I thought her nice and honest the first time I met her。
Directly the master came in, everyone was quiet. 校长一进来， 大家就安静下来。
The young lady rushed into the room immediately she heard the noise.
As the sun rose the frog dispersed. 太阳一出来雾就消散。
They strolled into the garden as the music ceased. 音乐声一停，他们就走进花园。
I heard the murmur of their voices as I crossed the hall. 我走过大厅的时候听到他们在嘀咕什么。（两个动作都是一般时态）
Just as he was speaking there was a loud explosion. 正当他在说话的时候，一声巨响。
He smiled as he passed. 他路过的时候笑了一下。（两个都是短暂动作）
As she sang, the tears ran down her cheeks. 她一边唱歌，眼泪一边从脸颊淌下。
Helen heard the story as she washed. 海伦一边洗衣服一边听故事。