I am busy yesterday为什么加am

I am busy yesterday为什么加am Yesterday,I am busy.改错.把am改成什么? Today I am ( ).But yesterday I was busyToday I am ( ).But yesterday I was busy. I AM BUSY NOW? A：Are you busy now?B:No ,I am not ___(busy)I was yesterday.如果正确, Are you busy now?No,I am not ()(busy)I was yesterday.用形容词的适当形式填空 i am quite busy at NO I am not busy I was busy yesterday的同义词 I'am stronger than yesterday 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 i am ----(terriblr busy these days