Jim, Marry ,my good friend.
如果你想问别人“这位是谁?” 你可以说: A.Who is this?B.Who is that?C.Who are you?
如果你想向别人介绍你的爸爸,你可以说: A.This is my grandpa.B.This is my brother C.This is my father
——she your friend? ——Yes,she is. A.AmB.IsC.Are
is the girl? A.Who B.WhatC.Whose
Therefour people in my family. A.am B.isC.are