Questions about percents in English Hello everyone, I have a question: In English, when talking about percents, can we say: - Group 1 *comprises* 30% of all participants - Group 2 *is* 20% of all the participants - Group 3 *makes* 20% of all participants - The rest of participants form Group 4. Are the above sentences correct? Thank you in advance. PS: - additional 5 participants *take* 3 more percent. thank you!

Important question about "you will know", please help Hello, Please help me understand this sentence(I came across it today): If you've ever been to New York, you will know exactly what I'm talking about. Why do we have will in the phrase "you will know"? Doesn't "if you've been" mean "given that you went there at some point of your life"? So then, why we have "you WILL know" and not "you know"/ "you surely know etc" Could you please explain this to me? Also, would "if you ever visited New York you would know what I'm talking about" mean the same thing? and the second question: "If their flight hasn't been delayed they will have arrived by now" - is this correct? Thank you very much!

『有目标做某个事』一句 下订单时请表示您是否有限制或目标削减碳，一氧化氮等排放量？ 请问以上的句子对吗？ 谢谢！

"might be not / might not be" question Do the following sentences have the same meaning? Are they both correct? If there is a difference, what is it? I did the task for the fear I might not be in time with it. * I might be not in time Thank you!

商業提議的一句話 對工廠的商業提議 (commercial offer)： 如果您有興趣研究節省燃油消耗成本的機會，減少排放和廢污泥請給我們發送詢問。 感謝！！！

戒菸的廣告（樣本） 我擬了這個假的公告。 『如果你有興趣戒菸請到我院收聽香菸對身體的影響的課程並觀看一些陳列的生物樣品以便最明顯的瞭解抽菸的後果。』 謝謝幫助指錯！

改進和改性的區別 大家好！ 我想問一下，一家公司有工程專案 - 給燃料加一些提高其效率的輔助的物質。 添加這些物質後這個燃料叫 1） 改進燃料 ？ 還是 2）改性燃料？ 謝謝！

調節燃料的枯燥的兩句話 lol 大家好！以下兩個句子： 1.『燃料萬能機』適合用於透過混合燃料來調節粘度或硫含量的任何應用 2.（混合不同粘度的燃料以產生具有所需粘度的穩定均質的燃料） 第一句話是不是有些彆扭？意思是這個設備可以用在對燃料需要調節粘度或硫含量的任何工程。 第二句話『產生』一詞是對的嗎？ *（這一段當然屬於正式的寫作風格 - 嚴格來講是技術文本的風格~） 謝謝幫助！！！