27. Though____________of the danger of walking alone in the street at night, he wouldn’t have anyone accompany him.
Though I have often heard this song _______. I have never heard you _______ it.
Tony was very unhappy for _______ to the party.
The research is so designed that once _______ nothing can be done to change it.
After graduation she reached a point in her career __________ she had to decide what to do.
Edward, you play so well. But I ________ you played the piano.