Listen to the things which I will tell you.
Listen to what I will tell you.
听听我将要告诉你的事。
The thing which he said was a white lie.
What he said was a white lie.
他说的是善意的谎言。
This is the thing which I want.
This is what I want.
这就是我想要的东西。
Show me the thing which is inside.
Show me what is inside.
给我看里面的东西。
He is thinking about the thing which he is going to do next.
He is thinking about what he is going to do next.
他正在考虑他接下来要做什么事。