41.I'm busy with （doing）…… 我正忙于…….

　　?Don't bother me - I'm busy with （doing） my project right now.

　　別打擾我,我現在正忙于作計劃呢.

　　42.In conclusion, ……最后,…….聰之,…….

　　?In conclusion, I find mutual understanding plays a key role in building a friendly relationship.

　　總之,我發現相互理解對建立友好關系至關重要.

　　43.In order to……, you should…… 為了………?,你應該……….

　　?In order to understand this essay fully, you should read more about its author.

　　為了更充分地理解這篇文章,你應該多看一些關于作者的介紹.

　　44.In other words, …… 換句話說,…….

　　?In other words, you should read and speak English crazily every day.

　　換句話說,你應該每天瘋狂讀英語,說英語.

　　45.In that case,… 既然那樣,…….

　　?In that case, I have no more to say.

　　既然那樣,我沒什么好說的了.

　　46…… ……is of great importance. ……很重要. │

　　?If you want to succeed in life, I think to set a goal for yourself is of great importance.

　　如果你想在生活中成功,我覺得為自己確立一個目標是非常重要的.

　　47.Is it convenient for you to…… 你是否方便……

　　?Is it convenient for you to post this letter for me when you go out

　　你出去的時候是否方便幫我寄這封信

　　48.It depends on whether…… 這取決于……是否…….

　　?It depends on whether you are determined to do it or not.

　　這取決于你是否決心要做這件事情.

　　49.It doesn't make sense to………沒有任何意義.

　　?It doesn't make sense to argue with him.

　　和他爭論沒有任何意義.

　　50.It is/was……that/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.