如下：
This is what I want.这就是我想要的。
Next sunday is when we shall meet. 下周日是我们见面的时间。
This is why I am late.这就是我迟到的原因。
My problem is which computer to choose.我的问题是不知道选哪个电脑。
The problem is how we can get the things we need.问题是我们怎样能弄到我们需要的东西。
That’s where you are wrong. 这就是你不对的地方。
The problem is who should be responsible for the task.问题就是谁应该对这个任务负责。
表语从句
表语从句位于主句系动词之后，可分为两类：be + that型从句和be +疑问词型从句。
he fact is that we have no idea to solve this problem.事实就是我们没办法解决这个问题。
The reality is that the party must be cancelled because of the storm.现实就是因为暴风雨这个聚会必须得取消了。
佐鉺三鉺洞
