It is necessary to explain your theory _____, otherwise the audience won’t make sense of what you are trying to get across

填入下面一段文字横线处的语句，最恰当的一组是（ ）（3分 ） 我们的思想愈深刻，我们的感受愈丰富，我们的情感愈细腻，我们借以表达思想、感受和情怀的语汇就愈需要丰富。内心的丰富会表现为语言的丰富，我们词汇的丰富和新颖，也就在一定的意义上意味着我们思想的丰富和新颖。我们可以通过对语言的锤炼来提升我们思想的品质。因为， 。

The chief editor asked the reporters to ________ the article so as to make it fit the space available on the paper.

I need to my colleagues on the proposals.Some days later,I will tell you the result. [ ]

I could not start my car this morning due to the cold weather. –No wonder you were late. You ___ have used mine. I was not using all the morning.