As far as I know,...据我所知，……。

As far as l know,he is not coming,but l may be wrong。

据我所知，他不打算来，但我或许会弄错。

As long as只要…。

As long as we work together, we can make the impossible possible。

只要我们一起努力，我们就能把不可能变为可能。

According to…依照/根据……。

According to the newspaper,it's a great movie。

根据报纸说，这是一部很棒的电影。

As matter of fact,…实际上……,……。

As matter of fact,I don't agree with you。

实际上，我不大同意你的看法。

But for.。。若不是因为……./如果没有……。

But for your generous help, we couldn't have finished the work so soon。

如果没有你的鼎力相助，我们不可能这么快完成工作的。

Do you enjoy doing... 你喜欢做……吗

Do you enjoy having a few friends around talking and laughing

你喜欢几个朋友聚在一起有说有笑吗

Did you know (that)... 你知道……吗

Did you know (that) Daniel has won the first prize of the writing contest

你知道丹尼尔得了写作比赛的第一名吗

Do you know if /whether... 你知道是否……

Do you know if there are any apartments available in this area

你知道这一带还有公寓出租吗

Do/ Would you mind doing... 你介意做……吗

Do you mind giving me a glass of water and some aspirin

给我一杯水和一些阿斯匹林，好吗

Do/ Would you mind if... 如果……你是否介意

Do you mind if I ask you a few questions

你介意我问你几个问题吗

Do you think it is possible to... 你认为……可能吗

Do you think it is possible to solve the problem overnight!

一夜之间解决这个问题你觉得有可能吗

Do you think it necessary to... 你认为有必要……吗

Do you think it necessary to ask for official permission for the event to take place

你觉得进行这项活动，有必要得到正式的批准吗

Don't be afraid of... 不要害怕……。

Don't be afraid of losing face。

不要害怕丢脸.

Don't take it for granted that... 别认为……理所当然。

Don't take it for granted that your parents should support you all your life。

别以为你父母养你一辈子是天经地义的事。

For one thing,... For another,... 一方面……;另一方面……。

For one thing, these shoes don't suit you. For another, they are too expensive。