30)It is time + 主语 + 过去式 (该是……的时候了)例如：It is time the authorities concerned took proper steps to solve the traffic problems.该是有关当局采取适当的措施来解决交通问题的时候了。

　　注意：此句型可以转化为简单句句型：It is time for sth./for sb to do….例如：

　　It is time for lunch. 该吃午饭了。

　　It is time they were taught a lesson. 他们该接受教训了

　　31)To be frank/ To tell the truth, …. (老实说, ……) , 例如: To be frank/ To tell the truth, whether you like it or not, you have no other choice.老实说，不论你喜不喜欢，你别无选择。

　　32)it took him a year to do….( 他用了1年的时间来做……), 例如：As far as we know, it took him more than a year to write the book.到目前为止我们所知道的是，他用了1年的时间来写这本书。It took them a long time to realize they had made a mistake. 过了很久，他们才意识到犯错了。

　　33)spent as much time as he could doing sth.(花尽可能的时间做某事)，例如：He spent as much time as he could remembering new words. 他花了尽可能多时间记新单词。

　　34)Since + 主语 + 过去式，主语 + 现在完成式，例如：Since he went to senior high school， he has worked very hard.自从他上高中，他一直很用功。