变为被动语态 tina puts a book on the chair.my mother gives me a gift.he songs a song for me.
问题描述：
变为被动语态 tina puts a book on the chair.my mother gives me a gift.he songs a song for me.
答
A book is put on the chair by Tna.I am given a gift by my mother./ A gift is given to me by my mother.A song is sung for me by him./ I am sung a song by him.