He ________ sleep, although he tried to, when he got on such a hunt for an idea until he had caught it.(2013湖南)
Alexander Graham Bell invented_____telephone in1876.
Beyond_____stars, the astronaut saw nothing but_____space.
Alice is fond of playing___piano while Henry is interested in listening to___music.
_____danger man is often much wiser than usual.
Father went to his doctor for_____about his heart trouble.