In the summer, large crops of fruit may be_______ by freezing or bottling.
As your spoken English gets better, so_____ your written English.
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.