We are waiting ______ for your absence.
We may __________ our past experience to develop new technology.
His health is in bad condition, and __________ he is able to work no longer.
This book __________ 18 articles, __________ three written by my father.
Beauty is in the eye of the watcher and the same is true __________ both the appreciation of art and music.
Mr Zhang, a man calling himself Peter, __________ all day. Could you speak to him now?