________ is know to us all is that the old worker, for _______ life was hard in the past, still works hard in his seventies.
—Did you enjoy staying with your friend last week, Lily? —Yes. I _______ with him for a long time.
—What’s the matter with Della? —Well, her parents wouldn’t allow her to go to the party but she still _______.
, the sun was rising in the east.
Across North China in the world, namely the Great Wall.
—Pity you missed the lecture on nuclear pollution. —I _______ it ,but I was busy preparing for a job interview.