_______ tourists visit the Great Wall every day.
It is reported that more subways __________in our city in the next year.
—Could you tell me __________? —Yes, it will start on January 4, 2010.
The doctor told Mary to eat ________ vegetables and _______ meat because she was getting fatter and fatter.
—It’s an hour’s walk from here to the subway. —Don’t worry, I’ll ________ you there.
We don’t have enough nurses to look after the patients. At least _____ are needed.