英语

英语
句型转换
1.The boy has been collecting stamps since he was eight.（改为一般疑问句）
_______they boy_______collecting stamps since he was eight?
2.The writer wrote the book several years ago.(对划线部分提问）
-------------------------
_______ _______ the writer ________ the book?
3.The students have been raising money for the poor school for 10 yealss (对划线部分提问） ——————
_______ _______ ________ the students been raising money for the poor schools
4.The skater has been skating for a year and a half.(改为同义句）
The skater has been skating for one and ______ ________ _________ .
5.I started living here in 2007 (改为同义句）
I _______ ________ living here _________ 2007.
1.∠1=∠2,DE∥AC,DF∥AB
求证：四边形AEDF为菱形.