It depends on whether...
这取决于……是否……。
It depends on whether you are determined to do it or not。
这取决于你是否决心要做这件事情。
It doesn't make sense to...
…没有任何意义。
It doesn't make sense to argue with him。
和他争论没有任何意义。
It is/was...that/who... [强调句句型]
It was Edward who told me about it。
告诉我这件事的是爱德华。
It is believed that...
…人们认为……。
It is believed that what she said is true。
大家相信她的话是真的。
It is easy enough to..
.……相当容易。
It is easy enough to copy and paste; but you should write something by yourself。
抄袭(复制十粘贴)非常容易,但是你应该自己写一些东西。