When I spent my holidays in Europe, I bought _______ vases.
When you get on stage for the first time, you may be surprised by ______bright the lights are.
If you had joined the chat room ten minutes ago, you ______what we were talking about!
Yesterday, when I went to his office, he ______ online for some information. I think it will be an interesting lecture.
Instead of telling the joke he _______, Crystal made up a new one.
I am pleased to have this chance today ______to you about the United Nations or the UN.