介绍单个人或物用句型：介绍单个人或物用句型：This is. This is my friend, Mary.This is my book.介绍两个或两个以上的人或物的句型：介绍两个或两个以上的人或物的句型：These are . These are my friends, Mary and Bill.These are my books.This is his jacket.These are his jackets.This is her orange.These are her oranges.familyGood morning! Im Xiao Wanzi. Nice to meet you! These are my parents.This is my father.This is my mother.These are my grandparents.This is my grandfather.This is my grandmother.grandfatherfathersistergrandmothermotherThis is my.friend (Xiao Yu )Xiao WuanziThese are my.Gina MillersisterI Grandmother(Grandma)Grandfather(Grandpa)Mother(Mom)Father(Dad)Alans family tree parentsgrandparents Alan Miller