Do you _________ or serve in an organization or are you a member of some group?

---Did you notice Tom was busy all day in his office?---Oh, yes, he has just finished his business tour of Chicago. He has a lot of work to ___.

I have no idea of what is in fashion nowadays, so my choice might be quite     ____  .

The green-hand cook        the soup by putting in too much salt accidentally．

WikiLeaks founder Julian Assange was in court today, and when asked for his address he said he didn't want to ________ that information.