Which period of history would you most like to have lived in?
你最喜歡生活在哪一個歷史時期？
You must signal which way you are going to turn.
你要朝哪個方向轉，必須發出訊號。
There are two points which I wanted to make.
我想要指出的`有兩點。
We are still friends, though, which is good.
不過我們仍然是朋友，這令人感到欣慰。
Which part of Japan do you come from?
你是日本哪個地區的人？
There is some noise in the data which needs to be reduced.
資料裡有一些需要刪除的不適用資訊。