If you work hard, you will have a ________to enter a good university.
---There are APPs on mobile phones.---Yes. They make life easier and more interesting.
---Hi, Karen, the book you want will be next Monday.---Thank you very much. I’ll go and get it then.
---Can you come to my party?----I’m sorry,_____ I can’t go to the movies with you.
---Spring Festival is on its way.---Yeah. Are you going with your family during the holiday?
---Lily, I am sorry I will not be able to go to your party.--- . Let’s make it another time.