The truth is that he has already made a decision.（事实是他已经做了决定。）

My dream is that I can become a famous writer one day.（我的梦想是有一天我能成为一名著名的作家。）

Her worry is that her mother's health is getting worse.（她担心的是她母亲的健康状况越来越差。）

The problem is that we don't have enough money to buy a new house.（问题是我们没有足够的钱买新房子。）

His opinion is that we should start the project as soon as possible.（他的意见是我们应该尽快启动这个项目。）

What I want to know is that whether he will come to the party tonight.（我想知道的是他今晚是否会来参加派对。）

The reason for his failure is that he didn't work hard enough.（他失败的原因是他不够努力。）

My concern is that the weather might affect our outdoor activity.（我担心的是天气可能会影响我们的户外活动。）

Their plan is that they will travel around the world next year.（他们的计划是明年环游世界。）

The fact is that she has been lying to us all this time.（事实是她一直都在对我们撒谎。）

His hope is that his son can get into a good university.（他的希望是他儿子能考上一所好大学。）

The difficulty is that we lack the necessary experience.（困难在于我们缺乏必要的经验。）

My belief is that love can overcome any obstacle.（我相信爱是可以克服任何障碍的。）

What makes me happy is that my parents are coming to visit me.（让我开心的是我父母要来看我了。）

Her goal is that she wants to break the world record.（她的目标是她想打破世界纪录。）

The situation is that we need to find a new solution immediately.（情况是我们需要立即找到一个新的解决方案。）

His fear is that he will lose his job due to his mistake.（他害怕的是他会因为自己的错误而失去工作。）

My impression is that this city is very beautiful and friendly.（我的印象是这座城市非常美丽且友好。）

The key point is that we must pay attention to every detail.（关键是我们必须注意每一个细节。）

Their conclusion is that the experiment was a success.（他们的结论是实验成功了。

）