50.It is/wasthat/who [強調句句型]

　　It was Edward who told me about it.

　　告訴我這件事的是愛德華

　　51.It is believed that人們認為

　　It is believed that what she said is true.

　　大家相信她的話是真的

　　52.It is easy enough to相當容易

　　It is easy enough to copy and paste; but you should write something by yourself.

　　抄襲非常容易，但是你應該自己寫一些東西

　　53.It is high time 現在是的時候了/早就應該了 [從句使用虛擬語氣]

　　It is high time we stopped talking about this silly question.

　　我們早就該結束討論這個愚蠢的問題了

　　54.It is no use doing sth. 做某事是毫無用處的

　　It is no use talking without doing.

　　光說不做是沒有用的

　　55.It is difficult to困難

　　It is very difficult to foretell what the world will be like in the future.

　　很難預測將來的世界會怎樣 [ foretell v. 預言;預測]

　　56.It sounds like 聽起來好像

　　It sounds like a good idea. 聽起來這主意不錯