英语改错..有主语缺失..要怎么改啊= =

如others指的是梦想.就这样改
The fantasy of college I have dreamed of before have been realized but others have not been.
我以前上大学的梦想实现了但其它的还没有实现.
如others 指人就这样改
The fantasy of college I have dreamed of before came true but others didn't .我以前上大学的梦想实现了但其他人还没有实现.

have 改成had