帮忙解答下现在完成时练习题

帮忙解答下现在完成时练习题
句型转换.
1、He has never surfed,（改成反意疑问句）
2、They have been here since 2000.(对划线部分提问)
have they been here?
3、The old man _________ last year.He for a year.(die) （动词填空）
4、This factory opened twenty years ago.(同义句转换)
This factory ________ for twenty years.
5、Miss Gao left an hour ago.(同义句转换)
Miss Gao ________ _______ ________ ________ an hour ago.
6、Her mother has been a Party member for three years .（同义句）
Her mother _______ the Party three years ________ .
7、The Green Family moved to France two years ago.(同义句转换)
_______ two years ________ the Green family moved to France.
8、The bus has arrived here.It arrived ten minutes ago.(把两个句子合并成一个句子)