This is she's speaking.中she’s是什么用法?

This is —— speaking .A.she B.her’s C.she‘s D.her This is she speaking. 1.May l speak to Mary This is ( ) speaking A.she's B,No one This is Nancy.She is _____the USA. She likes s This is she speaking 这种说法对么 she's pretty good looking ,but man is she dumb 后半句是什么特殊用法吗? This is John speaking.Who's that? This is Ling.She's Chinese.She is learning Chinese.She wants This is my c.She is my aunt's daughter Is this Mary's bag?No,____(she) is red This is my friend.She is a s( ) This is Amy.She,s quiet.She,s very hard一w