tony stands behind Helen同义句

tony stands behind Helen同义句 Tom stands behind me.改为同义句 I see a man behind me(改一般疑问句) helen is good at singing（同义句） Tom stands behind me Tony is Engliash.改为同义句 Tony is ---------- --------------. He is Tony.(改为同义句) ( ) ( )is Tony. Helen is fine.(改为同义句） Helen is English 改为同义句 Helen is good at singing. (同义句) She is helen.怎么改为同义句? My name is Helen 改为同义句 is helen in 改同义句