---What's made Ruth so upset?--- ______ three tickets to the folk music concert.
— ______ will get the first prize?— I'm sure, Li Hua.
_____ leaves the room last ought to turn off the lights.
Why not seize it _______ you’ve got such a good chance?
You can’t imagine ______ when they received these nice Christmas presents.
My new pen ______. Who ______ have taken it?