I know how _____ you have all worked for this test.A.luckily B.terribly C.fast D.hard

How do I know you? I think I know how you feel. I know how you miss your mother Know how deep I love you do you know how much i love I want to know how you SO you know how much i need wish I know how to quit you. You never know how worried I am i wanted you know just how down You never know how I am i know how much you like football do you know how old am i how can I let you know how much I love how can i let you know how much i You know I need some _____.(help) How much did you throw away?I want to know（合并为一句）I want to know____ _____ _____ _____ ____ you will never know how much sad when i know