Although dishonesty seems so common in recent years, people still believe that honesty will not go out of       ．

Festivals are a great time for people to meet friends and enjoy each other’s _____.

Much to my _______,I am unable to accept your invitation.

My neighbor is very kind. I’ll never forget the ______ she’s done for me.

I’ve listened to Professor Smith’s talk about medicine,but I still haven’t got a good understanding of its key _________.