121. I was uncertain of my success. Which of the following can replace the underlined word?
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 ____.