Busy as I am,I am quite happy.这是什么结构?

I AM BUSY NOW? I am busy as a bee和I am as busy as a bee,两句有什么区别? I am busy yesterday为什么加am Busy as I am,I am quite happy.这是什么结构? i am quite busy at NO I am not busy i am here ,as I am AS DOG AS. I am busy now还是I am busying now I am busy,and I am ()(熬夜） every day. I can't help__(do)the repair work as I am busy now. I am very busy.同义句 I am busy and will go home i am busy now.don’t interrupt 翻译：I am busy and tired. I am busy __(do)my homework. I am fuckin' busy FUCKIN后加一撇是什么意思? I am busy _____ (read) the book