I Know it is hard to make such a decision _______ he has just built up the team for a yearand the project is going in the important stage now.为什么选as而不是when

Is difficult to forget the past~But i know it's hard but i gotta do it是什么意思 I know It' s hard to say in one word I know It' s hard to say in one word i know that it's hard to understand anyway和however.i know it is hard to do ,but you should have a try _______.填内个吖... It is hard to 是i find it hard to say 还是i find it is hard to say I found it hard to understood为什么不是I found it is hard to understood how to speak English?who can help me?I know how to say in my mind but it is very hard to say it out 泰坦尼克号里这句话是什么意思?I know how hard it is for people who care greatI know how hard it is for people who care greatly for money to give some away. The maths problem is so hard,I really don't know ____.A.how to do it B.how to do C.what to do “it is hard to walk away try as i might 有首歌刚开始是i know it is hard to remember the people we used to be 男的唱的 是什么歌? 翻译：it is very hard for people to know how fast a car is travelling 28.-- English is hard to learn,isn’t it?-- I don’t think so._____ more words andexpressions,and you will find it easier to read and communicate.A.Knowing B.Know C.To know D.Known It is hard to wait It is hard to please It is hard to select!