_____is known to us all is that the old writer for ____life was hard in the past , still works very hard in his eighties.
In some parts of London, missing a bus means ________ for another hour.
—The light in the office is still on. —Oh,I forgot ________.
—You were brave enough to raise objection at the meeting. —Well, now I regret ________ that.
-----Has any of you reached the Great Wall ? -----__________.
It’s the fifth time ______ late this term.