I have joined the Part for 3years .I have been a member of t

I have joined the Part for 3years .I have been a member of t I have been a member of Greener China for a year.I have writ I ( ) the league for five years A joined B.have joined C.hav I have been a party member for six years old的同意句是什么啊 I have been on a diet for the better-or worse-part of my lif i have been the usa 3 years ago 还是i have been the usa for 3 my father has been a member of the part for nearly 20 years翻 i have become a member of the english club for three terms 这 例子 I have been on a diet for better part of my life I have been a League member ( )three years 用适当的介词填空 I HAVE BEEN PLAYED THE FLUTE FOR FOUR YEARS 求解释The Smiths____Beijing for years. （have been i