I know this period of time is very difficult,but I also want

I know this period of time is very difficult,but I also want this problem is very difficult,but i want to have a 什么（以t开头) I know that that is impossible, but I also want to go什么意思 I know it is difficult question,but this is not right attitu i know that it is very difficult to stop smoking ,but you __ but I do not know where that is also very much hope that you  I also want you to know my mode of payment for this or 改错This math problem is very difficult but I can work out it. I only want to let her know this:time is life,time is money, en.She is very busy,i want to help her .but I don't know ___ the school was a very difficult period of my life.i first me this time i ------ (fail),but i want to try again