i really don't know how i can thank you enough

i really don't know how i can thank you enough I really don not know I can thank you enough I really don't know I can ____ thank you enough.A.hardly B.l I don\'t know how I can possily thank you enough.为什么用possibl 怎么把这句话翻得好一点?I don't know how I can possily thank you enough. You really helped me a lot .i don't know how I can p_____ th I can't thank you enough 翻译 I really don't know how I can do it well 改同义句 I really don't how can i know if you don't I really don't know now how long I can still strong I really don't know how to say .I miss you .The day when you How could I thank you enough?Don't mention it!Any other man_