this is the pen used by me` 改成从句 这个过去分词谢谢the girl having long hair is mary ` the girl who has long hair is mary.这是写在分次需要用被动语态么？

英语 This is the pen used by David.This pen was used by David.这两句有什么差别? this is the pen used by David能不能is 放在used 前面,为什么 this is the pen used by Dick?前面的干吗用this isthe pen is used by Dick 不就好了吗this is pen 这是笔加上不是很怪吗? this the the pen,the pen is nice . This is pen.how much is the pen This is his pen,The pen b___ to him ①This the pen is mine.( ) ②This pen is mine.( ) 嘻嘻…… this is our pen---------------- This pen is beautiful? This pen is yours This is not her pen.()(her) is on the desk This is( )good pen ( )color of theWis biack This is Jim.His pen is the red.改错 This pen is mine 保持原句意思 The pen ____ ____ me.This pen is mine 保持原句意思The pen ____ ____ me. 修改病句 This is a pen.The pen is a blue. This is a pen. The pen is a red 怎么改正确在线等 this is the pen used by me` 改成从句 这个过去分词谢谢the girl having long hair is mary ` the girl who has long hair is mary.这是写在分次需要用被动语态么？ This is the her pen.改正错误,怎么改