It's difficult for us to learn a lesson in life____ we've actually had that lesson.A.until B.since C.before D.when为什么不能选C.望大伙给个说法

it's difficult for It's difficult to take u out from my mind It's difficult to take u out from my mind math is difficult for me.=it's difficult for me （）（）math. it's difficult to/for有什么区别?it's difficult to和it's difficult for有什么区别?没有上下文喔句型、翻译等方面说吧 it's kind of difficult for .如题 It's difficult to find right shoes for his f_____. It's difficult for us_____(learn)English____(good) it's difficult for a child _____ _____the work work me it's for to difficult finish thework me it's for to difficult finish the(.)连词组句 It's difficult 这对我太难了怎么说英文是it's difficult for me 还是it's difficult to me It's difficult to me 还是It's difficult for me 如果都对,有何区别? Geting up early is difficult for me同义句It's difficult for me （）（）up early This math problem is s_____ for you,but it’s difficult for such a young boy The story ——（it）is interesting,but it's a little difficult for children. do you like math? no,it's __ difficult for me to learn it. Sometimes it's difficult for me to c( ) my deskmate's mind. It's difficult to choose!