What is this?
这是什么?
What time is it?
现在几点了?
What do you want to do?
你想要做什么?
What is your name?
你叫什么名字?
What's wrong with you?
你怎么了?
What is the matter?
什么事?
That is what I want to tell you.
那就是我想要告诉你的。
Could you tell me what this means?
你可以告诉我那是什么意思吗?