Hi everybody. I have always thought that (( it )) is used to refer to animals or tim e or objects and etc,but why sometimes for example it is said that "it is John." or "it is my sister."I woder if (it) is used for person too? If so,when? THANKS
If I'm talking to my sister on the phone, she might say, "Let me have a word with your wife." I say to my wife, "Come to the phone, please."
She says, "Who is it?" I say, "It's my sister." I don't say, "She's my sister," here.
If my wife had never seen my sister, and my sister is standing in a group of women, when my wife approaches and says, "Which one is your sister?" I say, "She's [pointing] my sister."