I was doing my homework _______ a dog came in.
--- Is she your sister? ---No, ________.
---_________ are those? ---They are my girl friends.
________ name is Gina Miller.
Jack and Kate came back 2 hours ago. But _________ students in the class aren’t here.
---Whose book is it?---look! Jane’s name is on the cover(封面). It _________ hers.