I am sure/certain that he’s at home now. 我肯定他现在在家。
He became angry that you made the same mistake. 你犯了同样的错误，他生气了。
He remains confident that he will win. 他仍然自信他会赢
She is aware that I can’t help her. 她知道我帮不了她的忙。
I am glad that you’ve come. 你来了我很高兴。
He appeared/seemed surprised that I said “no”. 我说不，他似乎很吃惊。
I am afraid that I can’t promise you anything. 恐怕我不能向你保证什么。
We were rather disappointed that you were not able to come yesterday. 昨天你没能来我们有点失望。
I am a bit worried that she will not be able to make it. 我有点担心她做不成这件事情。
what 从句的小结
1.意思是“所….的事/物”, 相当于the thing(s) that…, that which…, 或those which… 可以用于以下情况：
(1) 引导主语从句。如：
What she saw frightened her. 她看到的事情吓了她一跳。
What was once regarded as impossible has now become a reality. 曾经被认为不可能的事情，现在已经变成了事实。
What I’m afraid of is their taking him to that place. 我怕的是他们带他到那地方去。What we are worrying about is just her innocence. 我们担心的是她的幼稚。
