_______ in this way can we save nature and animals, which is of great value to human beings.
At discussion, Jack ____ an idea that they should bring down the price of the bicycles.
With a lot of modern office equipment, today’s schools are quite different from ____ of the past.
I really don’t know _________ I had my money stolen.
You will fall in love with that city _____ you learn about it.
Many websites have been _______ to help people study foreign languages.