he joined the party in 2002.改成he------ -------- a -------- --------for two years.怎么改?
网友回答
has been; party member
======以下答案可供参考======
供参考答案1:
he had joined a party for two years
供参考答案2:
nonono
供参考答案3:
用标准的这个结构 be a party to sth(参与)的完成式：
He has been a party to for two years.
这题就是为be a party to 出题的，要用be a party to结构！