It was the third time that I ________ of the changes of the timetable.
The boy insisted that he the money and he at once.
With more forests being destroyed, huge quantities of good earth _____ each year.
—Would you like to join us in playing the game? —I’m sorry, but my homework ______ by now.
Great as Newton was, many of his ideas _____today and are being modified by the work of scientists of our time.
She tried hard to keep calm in face of the students, but the sweat on her forehead _____ her ____.