__________ tourists will go to London for the Olympic Games this summer.A. Many thousands B. Thousands of C. Thousand
—_____ you _____ your homework yet? —Yes, I _____ it ten minutes ago.
It’s necessary for you _____ exercise every day.
—Could you tell me ____? —Sorry, I don’t know.
The Greens _____ China for seven years.
Nobody knew ______.