这些句子有没有更好的表达方式?

1.All you have to do is to wait.
>> You have to do nothing but wait.
2.He works hard,which is a fact that is known to us
>>As is known to us,he works very hard.
3.The girl dancing here yesterday is my sister.
这句话蛮好的,想不出什么更好的表达方式,就转一个同义句吧
My sister is the girl who danced here yesterday.
4.He is a man for whom i enjoy working
>>work for sb 为某人工作,说明他是你上司.用 He is a good boss即可
work with sb 和某人一起工作,说明他是你同事,用 He is a man with whom I enjoy working.>>He is a good colleague.
5.I am sick of the way he look at me.
be sick of 是感到厌烦的意思,这里我对他看我的方式感到厌烦,有些不顺口,改为我不喜欢他看我的方式,或者我厌烦他总是看我,更通顺些.
I am fed up with his looking at me.
I hate the way he looks at me.