I really don’t know what I should do.
可減化成：
I really don’t know what to do.
（我真的不知道該怎麼辦。）

Mr. Murdock is facing the charge that he murdered his wife.
可減化成：
Mr. Murdock is facing the charge of murdering his wife. （莫達克先生正面臨謀殺他太太的指控。）

Do you see the girl who is wearing a huge hat over there?
↓
Do you see the girl wearing a huge hat. over there?
（你有沒有看到那邊那個帶著一頂巨大帽子的女孩？）

Neil Armstrong was the first human that set foot on the moon.
→簡化成→ Neil Armstrong was the first human to set foot on the moon.
（尼爾・阿姆斯壯是第一個踏上月球的人類。）

After he had worked for five hours straight, he was more than happy to take a break.
↓
Having worked for five hours straight, he was more than happy to take a break.
（在連續工作五個小時之後；他很高興可以休息一下。）

I turned down the volume on the stereo in order that I could hear what he said.
→簡化成→ I turned down the volume on the stereo in order to hear what he said.
（我把音響的音量關小，以便聽清楚他說的話。）

As soon as I heard the news, I gave him a call.
→簡化成→ Upon / On hearing the news, I gave him a call.
（我一聽到那個消息，就打了通電話給他。）