For the past two years,I have been busy preparing for the ex

For the past two years,I have been busy preparing for the ex The students are busy preparing for the national entrance ex for these past two years i have been able . What have I been doing for the past 20 years that’s been so I have ( )the book for two years. 求翻译!For the past ten years,I have been frustrating my parent 英语翻译Dear Sirs,For the past 8 years I have been a statisticia I have been a new reporter for the past fifteen years i am too busy preparing for the exam ___________ (play) 判断正误I have been in the first middle school for two years I HAVE BEEN PLAYED THE FLUTE FOR FOUR YEARS 求解释The Smiths____Beijing for years. （have been i